# Средняя линия трапеции Средняя линия трапеции Средняя

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```&Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;
17.10.11
1. &Ntilde;&acirc;&icirc;&eacute;&ntilde;&ograve;&acirc;&icirc; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;. &Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&uuml;&iacute;&agrave; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave; &egrave; &eth;&agrave;&acirc;&iacute;&agrave; &egrave;&otilde; &iuml;&icirc;&euml;&oacute;&ntilde;&oacute;&igrave;&igrave;&aring;.
2. AK &acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc; CK &eth;&agrave;&acirc;&aring;&iacute; &iuml;&icirc; &auml;&euml;&egrave;&iacute;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
3. &Icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc; a &egrave; b. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&aring;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&aring;&iacute; &aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave;
&egrave; &iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &aring;&atilde;&icirc; &auml;&euml;&egrave;&iacute;&oacute;.
4. &Ograve;&icirc;&divide;&ecirc;&agrave; M &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; AB . &Ograve;&icirc;&divide;&ecirc;&egrave; A1 , M1 &egrave; B1 - &iuml;&eth;&icirc;&aring;&ecirc;&ouml;&egrave;&egrave; &ograve;&icirc;&divide;&aring;&ecirc; A, M &egrave; B &iacute;&agrave; &iacute;&aring;&ecirc;&icirc;&ograve;&icirc;&eth;&oacute;&thorn; &iuml;&eth;&yuml;&igrave;&oacute;&thorn;. &agrave;) &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; M1
&ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; A1 B1 . &aacute;) &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; M M1 , &aring;&ntilde;&euml;&egrave; AA1 = a, BB1 = b.
5. &Auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &acirc;&ccedil;&agrave;&egrave;&igrave;&iacute;&icirc; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &agrave; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; 5. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute;.
&Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;
17.10.11
1. &Ntilde;&acirc;&icirc;&eacute;&ntilde;&ograve;&acirc;&icirc; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;. &Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&uuml;&iacute;&agrave; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave; &egrave; &eth;&agrave;&acirc;&iacute;&agrave; &egrave;&otilde; &iuml;&icirc;&euml;&oacute;&ntilde;&oacute;&igrave;&igrave;&aring;.
2. AK &acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc; CK &eth;&agrave;&acirc;&aring;&iacute; &iuml;&icirc; &auml;&euml;&egrave;&iacute;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
3. &Icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc; a &egrave; b. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&aring;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&aring;&iacute; &aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave;
&egrave; &iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &aring;&atilde;&icirc; &auml;&euml;&egrave;&iacute;&oacute;.
4. &Ograve;&icirc;&divide;&ecirc;&agrave; M &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; AB . &Ograve;&icirc;&divide;&ecirc;&egrave; A1 , M1 &egrave; B1 - &iuml;&eth;&icirc;&aring;&ecirc;&ouml;&egrave;&egrave; &ograve;&icirc;&divide;&aring;&ecirc; A, M &egrave; B &iacute;&agrave; &iacute;&aring;&ecirc;&icirc;&ograve;&icirc;&eth;&oacute;&thorn; &iuml;&eth;&yuml;&igrave;&oacute;&thorn;. &agrave;) &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; M1
&ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; A1 B1 . &aacute;) &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; M M1 , &aring;&ntilde;&euml;&egrave; AA1 = a, BB1 = b.
5. &Auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &acirc;&ccedil;&agrave;&egrave;&igrave;&iacute;&icirc; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &agrave; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; 5. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute;.
&Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;
17.10.11
1. &Ntilde;&acirc;&icirc;&eacute;&ntilde;&ograve;&acirc;&icirc; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;. &Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&uuml;&iacute;&agrave; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave; &egrave; &eth;&agrave;&acirc;&iacute;&agrave; &egrave;&otilde; &iuml;&icirc;&euml;&oacute;&ntilde;&oacute;&igrave;&igrave;&aring;.
2. AK &acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc; CK &eth;&agrave;&acirc;&aring;&iacute; &iuml;&icirc; &auml;&euml;&egrave;&iacute;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
3. &Icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc; a &egrave; b. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&aring;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&aring;&iacute; &aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave;
&egrave; &iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &aring;&atilde;&icirc; &auml;&euml;&egrave;&iacute;&oacute;.
4. &Ograve;&icirc;&divide;&ecirc;&agrave; M &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; AB . &Ograve;&icirc;&divide;&ecirc;&egrave; A1 , M1 &egrave; B1 - &iuml;&eth;&icirc;&aring;&ecirc;&ouml;&egrave;&egrave; &ograve;&icirc;&divide;&aring;&ecirc; A, M &egrave; B &iacute;&agrave; &iacute;&aring;&ecirc;&icirc;&ograve;&icirc;&eth;&oacute;&thorn; &iuml;&eth;&yuml;&igrave;&oacute;&thorn;. &agrave;) &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; M1
&ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; A1 B1 . &aacute;) &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; M M1 , &aring;&ntilde;&euml;&egrave; AA1 = a, BB1 = b.
5. &Auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &acirc;&ccedil;&agrave;&egrave;&igrave;&iacute;&icirc; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &agrave; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; 5. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute;.
&Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;
17.10.11
1. &Ntilde;&acirc;&icirc;&eacute;&ntilde;&ograve;&acirc;&icirc; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;. &Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&uuml;&iacute;&agrave; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave; &egrave; &eth;&agrave;&acirc;&iacute;&agrave; &egrave;&otilde; &iuml;&icirc;&euml;&oacute;&ntilde;&oacute;&igrave;&igrave;&aring;.
2. AK &acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc; CK &eth;&agrave;&acirc;&aring;&iacute; &iuml;&icirc; &auml;&euml;&egrave;&iacute;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
3. &Icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc; a &egrave; b. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&aring;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&aring;&iacute; &aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave;
&egrave; &iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &aring;&atilde;&icirc; &auml;&euml;&egrave;&iacute;&oacute;.
4. &Ograve;&icirc;&divide;&ecirc;&agrave; M &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; AB . &Ograve;&icirc;&divide;&ecirc;&egrave; A1 , M1 &egrave; B1 - &iuml;&eth;&icirc;&aring;&ecirc;&ouml;&egrave;&egrave; &ograve;&icirc;&divide;&aring;&ecirc; A, M &egrave; B &iacute;&agrave; &iacute;&aring;&ecirc;&icirc;&ograve;&icirc;&eth;&oacute;&thorn; &iuml;&eth;&yuml;&igrave;&oacute;&thorn;. &agrave;) &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; M1
&ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; A1 B1 . &aacute;) &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; M M1 , &aring;&ntilde;&euml;&egrave; AA1 = a, BB1 = b.
5. &Auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &acirc;&ccedil;&agrave;&egrave;&igrave;&iacute;&icirc; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &agrave; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; 5. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute;.
&Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;
17.10.11
1. &Ntilde;&acirc;&icirc;&eacute;&ntilde;&ograve;&acirc;&icirc; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;. &Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&uuml;&iacute;&agrave; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave; &egrave; &eth;&agrave;&acirc;&iacute;&agrave; &egrave;&otilde; &iuml;&icirc;&euml;&oacute;&ntilde;&oacute;&igrave;&igrave;&aring;.
2. AK &acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc; CK &eth;&agrave;&acirc;&aring;&iacute; &iuml;&icirc; &auml;&euml;&egrave;&iacute;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
3. &Icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc; a &egrave; b. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&aring;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&aring;&iacute; &aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave;
&egrave; &iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &aring;&atilde;&icirc; &auml;&euml;&egrave;&iacute;&oacute;.
4. &Ograve;&icirc;&divide;&ecirc;&agrave; M &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; AB . &Ograve;&icirc;&divide;&ecirc;&egrave; A1 , M1 &egrave; B1 - &iuml;&eth;&icirc;&aring;&ecirc;&ouml;&egrave;&egrave; &ograve;&icirc;&divide;&aring;&ecirc; A, M &egrave; B &iacute;&agrave; &iacute;&aring;&ecirc;&icirc;&ograve;&icirc;&eth;&oacute;&thorn; &iuml;&eth;&yuml;&igrave;&oacute;&thorn;. &agrave;) &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; M1
&ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; A1 B1 . &aacute;) &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; M M1 , &aring;&ntilde;&euml;&egrave; AA1 = a, BB1 = b.
5. &Auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &acirc;&ccedil;&agrave;&egrave;&igrave;&iacute;&icirc; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &agrave; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; 5. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute;.
&Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;
17.10.11
1. &Ntilde;&acirc;&icirc;&eacute;&ntilde;&ograve;&acirc;&icirc; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;. &Ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&uuml;&iacute;&agrave; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave; &egrave; &eth;&agrave;&acirc;&iacute;&agrave; &egrave;&otilde; &iuml;&icirc;&euml;&oacute;&ntilde;&oacute;&igrave;&igrave;&aring;.
2. AK &acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc; CK &eth;&agrave;&acirc;&aring;&iacute; &iuml;&icirc; &auml;&euml;&egrave;&iacute;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
3. &Icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc; a &egrave; b. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&aring;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&aring;&iacute; &aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;&igrave;
&egrave; &iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &aring;&atilde;&icirc; &auml;&euml;&egrave;&iacute;&oacute;.
4. &Ograve;&icirc;&divide;&ecirc;&agrave; M &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; AB . &Ograve;&icirc;&divide;&ecirc;&egrave; A1 , M1 &egrave; B1 - &iuml;&eth;&icirc;&aring;&ecirc;&ouml;&egrave;&egrave; &ograve;&icirc;&divide;&aring;&ecirc; A, M &egrave; B &iacute;&agrave; &iacute;&aring;&ecirc;&icirc;&ograve;&icirc;&eth;&oacute;&thorn; &iuml;&eth;&yuml;&igrave;&oacute;&thorn;. &agrave;) &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; M1
&ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&agrave; A1 B1 . &aacute;) &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; M M1 , &aring;&ntilde;&euml;&egrave; AA1 = a, BB1 = b.
5. &Auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &acirc;&ccedil;&agrave;&egrave;&igrave;&iacute;&icirc; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &agrave; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; 5. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&eth;&aring;&ccedil;&icirc;&ecirc;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&yuml;&thorn;&ugrave;&egrave;&eacute; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute;.
&Auml;&icirc;&igrave;&agrave;&oslash;&iacute;&aring;&aring; &ccedil;&agrave;&auml;&agrave;&iacute;&egrave;&aring;
&iacute;&agrave; 22.10.11
1. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; &iuml;&eth;&egrave; &aacute;&icirc;&ecirc;&icirc;&acirc;&icirc;&eacute; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&aring; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&aring;&ntilde;&aring;&ecirc;&agrave;&thorn;&ograve;&ntilde;&yuml; &iacute;&agrave; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave;.
2. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aring;&ntilde;&euml;&egrave; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; &acirc;&ucirc;&ntilde;&icirc;&ograve;&aring;.
3. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&iacute;&icirc;&oslash;&aring;&iacute;&egrave;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &aring;&ntilde;&euml;&egrave; &egrave;&ccedil;&acirc;&aring;&ntilde;&ograve;&iacute;&icirc;, &divide;&ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &auml;&aring;&euml;&egrave;&ograve;&ntilde;&yuml; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&yuml;&igrave;&egrave; &iacute;&agrave; &ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
4. &Auml;&acirc;&aring; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&egrave; &ecirc;&agrave;&ntilde;&agrave;&thorn;&ograve;&ntilde;&yuml; &auml;&eth;&oacute;&atilde; &auml;&eth;&oacute;&atilde;&agrave; &acirc;&iacute;&aring;&oslash;&iacute;&egrave;&igrave; &icirc;&aacute;&eth;&agrave;&ccedil;&icirc;&igrave;. &Icirc;&auml;&iacute;&agrave; &iuml;&eth;&yuml;&igrave;&agrave;&yuml; &ecirc;&agrave;&ntilde;&agrave;&aring;&ograve;&ntilde;&yuml; &yacute;&ograve;&egrave;&otilde; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&aring;&eacute; &acirc; &eth;&agrave;&ccedil;&euml;&egrave;&divide;&iacute;&ucirc;&otilde; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; A &egrave; B , &agrave;
&auml;&eth;&oacute;&atilde;&agrave;&yuml; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &acirc; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; C &egrave; D. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; AB , &aring;&ntilde;&euml;&egrave; AC = a, BD = b. &Oacute;&ecirc;&agrave;&ccedil;&agrave;&iacute;&egrave;&aring;. &Iuml;&eth;&icirc;&acirc;&aring;&auml;&egrave;&ograve;&aring; &icirc;&aacute;&ugrave;&oacute;&thorn; &ecirc;&agrave;&ntilde;&agrave;&ograve;&aring;&euml;&uuml;&iacute;&oacute;&thorn;.
&Auml;&icirc;&igrave;&agrave;&oslash;&iacute;&aring;&aring; &ccedil;&agrave;&auml;&agrave;&iacute;&egrave;&aring;
&iacute;&agrave; 22.10.11
1. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; &iuml;&eth;&egrave; &aacute;&icirc;&ecirc;&icirc;&acirc;&icirc;&eacute; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&aring; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&aring;&ntilde;&aring;&ecirc;&agrave;&thorn;&ograve;&ntilde;&yuml; &iacute;&agrave; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave;.
2. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aring;&ntilde;&euml;&egrave; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; &acirc;&ucirc;&ntilde;&icirc;&ograve;&aring;.
3. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&iacute;&icirc;&oslash;&aring;&iacute;&egrave;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &aring;&ntilde;&euml;&egrave; &egrave;&ccedil;&acirc;&aring;&ntilde;&ograve;&iacute;&icirc;, &divide;&ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &auml;&aring;&euml;&egrave;&ograve;&ntilde;&yuml; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&yuml;&igrave;&egrave; &iacute;&agrave; &ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
4. &Auml;&acirc;&aring; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&egrave; &ecirc;&agrave;&ntilde;&agrave;&thorn;&ograve;&ntilde;&yuml; &auml;&eth;&oacute;&atilde; &auml;&eth;&oacute;&atilde;&agrave; &acirc;&iacute;&aring;&oslash;&iacute;&egrave;&igrave; &icirc;&aacute;&eth;&agrave;&ccedil;&icirc;&igrave;. &Icirc;&auml;&iacute;&agrave; &iuml;&eth;&yuml;&igrave;&agrave;&yuml; &ecirc;&agrave;&ntilde;&agrave;&aring;&ograve;&ntilde;&yuml; &yacute;&ograve;&egrave;&otilde; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&aring;&eacute; &acirc; &eth;&agrave;&ccedil;&euml;&egrave;&divide;&iacute;&ucirc;&otilde; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; A &egrave; B , &agrave;
&auml;&eth;&oacute;&atilde;&agrave;&yuml; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &acirc; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; C &egrave; D. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; AB , &aring;&ntilde;&euml;&egrave; AC = a, BD = b. &Oacute;&ecirc;&agrave;&ccedil;&agrave;&iacute;&egrave;&aring;. &Iuml;&eth;&icirc;&acirc;&aring;&auml;&egrave;&ograve;&aring; &icirc;&aacute;&ugrave;&oacute;&thorn; &ecirc;&agrave;&ntilde;&agrave;&ograve;&aring;&euml;&uuml;&iacute;&oacute;&thorn;.
&Auml;&icirc;&igrave;&agrave;&oslash;&iacute;&aring;&aring; &ccedil;&agrave;&auml;&agrave;&iacute;&egrave;&aring;
&iacute;&agrave; 22.10.11
1. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; &iuml;&eth;&egrave; &aacute;&icirc;&ecirc;&icirc;&acirc;&icirc;&eacute; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&aring; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&aring;&ntilde;&aring;&ecirc;&agrave;&thorn;&ograve;&ntilde;&yuml; &iacute;&agrave; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave;.
2. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aring;&ntilde;&euml;&egrave; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; &acirc;&ucirc;&ntilde;&icirc;&ograve;&aring;.
3. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&iacute;&icirc;&oslash;&aring;&iacute;&egrave;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &aring;&ntilde;&euml;&egrave; &egrave;&ccedil;&acirc;&aring;&ntilde;&ograve;&iacute;&icirc;, &divide;&ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &auml;&aring;&euml;&egrave;&ograve;&ntilde;&yuml; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&yuml;&igrave;&egrave; &iacute;&agrave; &ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
4. &Auml;&acirc;&aring; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&egrave; &ecirc;&agrave;&ntilde;&agrave;&thorn;&ograve;&ntilde;&yuml; &auml;&eth;&oacute;&atilde; &auml;&eth;&oacute;&atilde;&agrave; &acirc;&iacute;&aring;&oslash;&iacute;&egrave;&igrave; &icirc;&aacute;&eth;&agrave;&ccedil;&icirc;&igrave;. &Icirc;&auml;&iacute;&agrave; &iuml;&eth;&yuml;&igrave;&agrave;&yuml; &ecirc;&agrave;&ntilde;&agrave;&aring;&ograve;&ntilde;&yuml; &yacute;&ograve;&egrave;&otilde; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&aring;&eacute; &acirc; &eth;&agrave;&ccedil;&euml;&egrave;&divide;&iacute;&ucirc;&otilde; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; A &egrave; B , &agrave;
&auml;&eth;&oacute;&atilde;&agrave;&yuml; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &acirc; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; C &egrave; D. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; AB , &aring;&ntilde;&euml;&egrave; AC = a, BD = b. &Oacute;&ecirc;&agrave;&ccedil;&agrave;&iacute;&egrave;&aring;. &Iuml;&eth;&icirc;&acirc;&aring;&auml;&egrave;&ograve;&aring; &icirc;&aacute;&ugrave;&oacute;&thorn; &ecirc;&agrave;&ntilde;&agrave;&ograve;&aring;&euml;&uuml;&iacute;&oacute;&thorn;.
&Auml;&icirc;&igrave;&agrave;&oslash;&iacute;&aring;&aring; &ccedil;&agrave;&auml;&agrave;&iacute;&egrave;&aring;
&iacute;&agrave; 22.10.11
1. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; &iuml;&eth;&egrave; &aacute;&icirc;&ecirc;&icirc;&acirc;&icirc;&eacute; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&aring; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&aring;&ntilde;&aring;&ecirc;&agrave;&thorn;&ograve;&ntilde;&yuml; &iacute;&agrave; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave;.
2. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aring;&ntilde;&euml;&egrave; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; &acirc;&ucirc;&ntilde;&icirc;&ograve;&aring;.
3. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&iacute;&icirc;&oslash;&aring;&iacute;&egrave;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &aring;&ntilde;&euml;&egrave; &egrave;&ccedil;&acirc;&aring;&ntilde;&ograve;&iacute;&icirc;, &divide;&ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &auml;&aring;&euml;&egrave;&ograve;&ntilde;&yuml; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&yuml;&igrave;&egrave; &iacute;&agrave; &ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
4. &Auml;&acirc;&aring; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&egrave; &ecirc;&agrave;&ntilde;&agrave;&thorn;&ograve;&ntilde;&yuml; &auml;&eth;&oacute;&atilde; &auml;&eth;&oacute;&atilde;&agrave; &acirc;&iacute;&aring;&oslash;&iacute;&egrave;&igrave; &icirc;&aacute;&eth;&agrave;&ccedil;&icirc;&igrave;. &Icirc;&auml;&iacute;&agrave; &iuml;&eth;&yuml;&igrave;&agrave;&yuml; &ecirc;&agrave;&ntilde;&agrave;&aring;&ograve;&ntilde;&yuml; &yacute;&ograve;&egrave;&otilde; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&aring;&eacute; &acirc; &eth;&agrave;&ccedil;&euml;&egrave;&divide;&iacute;&ucirc;&otilde; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; A &egrave; B , &agrave;
&auml;&eth;&oacute;&atilde;&agrave;&yuml; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &acirc; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; C &egrave; D. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; AB , &aring;&ntilde;&euml;&egrave; AC = a, BD = b. &Oacute;&ecirc;&agrave;&ccedil;&agrave;&iacute;&egrave;&aring;. &Iuml;&eth;&icirc;&acirc;&aring;&auml;&egrave;&ograve;&aring; &icirc;&aacute;&ugrave;&oacute;&thorn; &ecirc;&agrave;&ntilde;&agrave;&ograve;&aring;&euml;&uuml;&iacute;&oacute;&thorn;.
&Auml;&icirc;&igrave;&agrave;&oslash;&iacute;&aring;&aring; &ccedil;&agrave;&auml;&agrave;&iacute;&egrave;&aring;
&iacute;&agrave; 22.10.11
1. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; &iuml;&eth;&egrave; &aacute;&icirc;&ecirc;&icirc;&acirc;&icirc;&eacute; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&aring; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&aring;&ntilde;&aring;&ecirc;&agrave;&thorn;&ograve;&ntilde;&yuml; &iacute;&agrave; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave;.
2. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aring;&ntilde;&euml;&egrave; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; &acirc;&ucirc;&ntilde;&icirc;&ograve;&aring;.
3. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&iacute;&icirc;&oslash;&aring;&iacute;&egrave;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &aring;&ntilde;&euml;&egrave; &egrave;&ccedil;&acirc;&aring;&ntilde;&ograve;&iacute;&icirc;, &divide;&ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &auml;&aring;&euml;&egrave;&ograve;&ntilde;&yuml; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&yuml;&igrave;&egrave; &iacute;&agrave; &ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
4. &Auml;&acirc;&aring; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&egrave; &ecirc;&agrave;&ntilde;&agrave;&thorn;&ograve;&ntilde;&yuml; &auml;&eth;&oacute;&atilde; &auml;&eth;&oacute;&atilde;&agrave; &acirc;&iacute;&aring;&oslash;&iacute;&egrave;&igrave; &icirc;&aacute;&eth;&agrave;&ccedil;&icirc;&igrave;. &Icirc;&auml;&iacute;&agrave; &iuml;&eth;&yuml;&igrave;&agrave;&yuml; &ecirc;&agrave;&ntilde;&agrave;&aring;&ograve;&ntilde;&yuml; &yacute;&ograve;&egrave;&otilde; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&aring;&eacute; &acirc; &eth;&agrave;&ccedil;&euml;&egrave;&divide;&iacute;&ucirc;&otilde; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; A &egrave; B , &agrave;
&auml;&eth;&oacute;&atilde;&agrave;&yuml; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &acirc; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; C &egrave; D. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; AB , &aring;&ntilde;&euml;&egrave; AC = a, BD = b. &Oacute;&ecirc;&agrave;&ccedil;&agrave;&iacute;&egrave;&aring;. &Iuml;&eth;&icirc;&acirc;&aring;&auml;&egrave;&ograve;&aring; &icirc;&aacute;&ugrave;&oacute;&thorn; &ecirc;&agrave;&ntilde;&agrave;&ograve;&aring;&euml;&uuml;&iacute;&oacute;&thorn;.
&Auml;&icirc;&igrave;&agrave;&oslash;&iacute;&aring;&aring; &ccedil;&agrave;&auml;&agrave;&iacute;&egrave;&aring;
&iacute;&agrave; 22.10.11
1. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; &iuml;&eth;&egrave; &aacute;&icirc;&ecirc;&icirc;&acirc;&icirc;&eacute; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&aring; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&aring;&ntilde;&aring;&ecirc;&agrave;&thorn;&ograve;&ntilde;&yuml; &iacute;&agrave; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave;.
2. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aring;&ntilde;&euml;&egrave; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; &acirc;&ucirc;&ntilde;&icirc;&ograve;&aring;.
3. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&iacute;&icirc;&oslash;&aring;&iacute;&egrave;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &aring;&ntilde;&euml;&egrave; &egrave;&ccedil;&acirc;&aring;&ntilde;&ograve;&iacute;&icirc;, &divide;&ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &auml;&aring;&euml;&egrave;&ograve;&ntilde;&yuml; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&yuml;&igrave;&egrave; &iacute;&agrave; &ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
4. &Auml;&acirc;&aring; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&egrave; &ecirc;&agrave;&ntilde;&agrave;&thorn;&ograve;&ntilde;&yuml; &auml;&eth;&oacute;&atilde; &auml;&eth;&oacute;&atilde;&agrave; &acirc;&iacute;&aring;&oslash;&iacute;&egrave;&igrave; &icirc;&aacute;&eth;&agrave;&ccedil;&icirc;&igrave;. &Icirc;&auml;&iacute;&agrave; &iuml;&eth;&yuml;&igrave;&agrave;&yuml; &ecirc;&agrave;&ntilde;&agrave;&aring;&ograve;&ntilde;&yuml; &yacute;&ograve;&egrave;&otilde; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&aring;&eacute; &acirc; &eth;&agrave;&ccedil;&euml;&egrave;&divide;&iacute;&ucirc;&otilde; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; A &egrave; B , &agrave;
&auml;&eth;&oacute;&atilde;&agrave;&yuml; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &acirc; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; C &egrave; D. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; AB , &aring;&ntilde;&euml;&egrave; AC = a, BD = b. &Oacute;&ecirc;&agrave;&ccedil;&agrave;&iacute;&egrave;&aring;. &Iuml;&eth;&icirc;&acirc;&aring;&auml;&egrave;&ograve;&aring; &icirc;&aacute;&ugrave;&oacute;&thorn; &ecirc;&agrave;&ntilde;&agrave;&ograve;&aring;&euml;&uuml;&iacute;&oacute;&thorn;.
&Auml;&icirc;&igrave;&agrave;&oslash;&iacute;&aring;&aring; &ccedil;&agrave;&auml;&agrave;&iacute;&egrave;&aring;
&iacute;&agrave; 22.10.11
1. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; &iuml;&eth;&egrave; &aacute;&icirc;&ecirc;&icirc;&acirc;&icirc;&eacute; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&aring; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&aring;&ntilde;&aring;&ecirc;&agrave;&thorn;&ograve;&ntilde;&yuml; &iacute;&agrave; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&aring;&eacute; &euml;&egrave;&iacute;&egrave;&egrave;.
2. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &aring;&ntilde;&euml;&egrave; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&egrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&iacute;&ucirc;, &ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; &acirc;&ucirc;&ntilde;&icirc;&ograve;&aring;.
3. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ograve;&iacute;&icirc;&oslash;&aring;&iacute;&egrave;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &aring;&ntilde;&euml;&egrave; &egrave;&ccedil;&acirc;&aring;&ntilde;&ograve;&iacute;&icirc;, &divide;&ograve;&icirc; &aring;&aring; &ntilde;&eth;&aring;&auml;&iacute;&yuml;&yuml; &euml;&egrave;&iacute;&egrave;&yuml; &auml;&aring;&euml;&egrave;&ograve;&ntilde;&yuml; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&yuml;&igrave;&egrave; &iacute;&agrave; &ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
4. &Auml;&acirc;&aring; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&egrave; &ecirc;&agrave;&ntilde;&agrave;&thorn;&ograve;&ntilde;&yuml; &auml;&eth;&oacute;&atilde; &auml;&eth;&oacute;&atilde;&agrave; &acirc;&iacute;&aring;&oslash;&iacute;&egrave;&igrave; &icirc;&aacute;&eth;&agrave;&ccedil;&icirc;&igrave;. &Icirc;&auml;&iacute;&agrave; &iuml;&eth;&yuml;&igrave;&agrave;&yuml; &ecirc;&agrave;&ntilde;&agrave;&aring;&ograve;&ntilde;&yuml; &yacute;&ograve;&egrave;&otilde; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&aring;&eacute; &acirc; &eth;&agrave;&ccedil;&euml;&egrave;&divide;&iacute;&ucirc;&otilde; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; A &egrave; B , &agrave;
&auml;&eth;&oacute;&atilde;&agrave;&yuml; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &acirc; &ograve;&icirc;&divide;&ecirc;&agrave;&otilde; C &egrave; D. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; AB , &aring;&ntilde;&euml;&egrave; AC = a, BD = b. &Oacute;&ecirc;&agrave;&ccedil;&agrave;&iacute;&egrave;&aring;. &Iuml;&eth;&icirc;&acirc;&aring;&auml;&egrave;&ograve;&aring; &icirc;&aacute;&ugrave;&oacute;&thorn; &ecirc;&agrave;&ntilde;&agrave;&ograve;&aring;&euml;&uuml;&iacute;&oacute;&thorn;.
1. &Ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; T &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute; AD &egrave; BC &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&icirc;&atilde;&eth;&agrave;&igrave;&igrave;&agrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &iuml;&eth;&yuml;&igrave;&ucirc;&aring; AT &egrave; CM &auml;&aring;&euml;&yuml;&ograve; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&uuml; BD &iacute;&agrave;
&ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
2. &Oacute;&atilde;&icirc;&euml; &iuml;&eth;&egrave; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&aring; A &eth;&icirc;&igrave;&aacute;&agrave; ABCD &eth;&agrave;&acirc;&aring;&iacute; 60◦ . &Iacute;&agrave; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&agrave;&otilde; AB &egrave; BC &acirc;&ccedil;&yuml;&ograve;&ucirc; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; N , &iuml;&eth;&egrave;&divide;&aring;&igrave; AM = BN .
&Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc; DM N &eth;&agrave;&acirc;&iacute;&icirc;&ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&iacute;&egrave;&eacute;.
3. &Acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&eth;&icirc;&acirc;&aring;&auml;&aring;&iacute;&iacute;&agrave;&yuml; &egrave;&ccedil; &ecirc;&icirc;&iacute;&ouml;&agrave; &aring;&aring; &igrave;&aring;&iacute;&uuml;&oslash;&aring;&atilde;&icirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;, &auml;&aring;&euml;&egrave;&ograve; &aring;&aring; &aacute;&icirc;&euml;&uuml;&oslash;&aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&aring; &iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&egrave; 6 &ntilde;&igrave; &egrave; 14
&ntilde;&igrave;. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
4. &Acirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc;&aring; ABC &iuml;&eth;&icirc;&acirc;&aring;&euml;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; A &egrave; C . &Ograve;&icirc;&divide;&ecirc;&egrave; P &egrave; Q &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&icirc;&acirc; &icirc;&iuml;&oacute;&ugrave;&aring;&iacute;&iacute;&ucirc;&otilde; &egrave;&ccedil; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&ucirc; B
&iacute;&agrave; &yacute;&ograve;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc;. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; P Q||AC .
1. &Ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; T &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute; AD &egrave; BC &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&icirc;&atilde;&eth;&agrave;&igrave;&igrave;&agrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &iuml;&eth;&yuml;&igrave;&ucirc;&aring; AT &egrave; CM &auml;&aring;&euml;&yuml;&ograve; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&uuml; BD &iacute;&agrave;
&ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
2. &Oacute;&atilde;&icirc;&euml; &iuml;&eth;&egrave; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&aring; A &eth;&icirc;&igrave;&aacute;&agrave; ABCD &eth;&agrave;&acirc;&aring;&iacute; 60◦ . &Iacute;&agrave; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&agrave;&otilde; AB &egrave; BC &acirc;&ccedil;&yuml;&ograve;&ucirc; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; N , &iuml;&eth;&egrave;&divide;&aring;&igrave; AM = BN .
&Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc; DM N &eth;&agrave;&acirc;&iacute;&icirc;&ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&iacute;&egrave;&eacute;.
3. &Acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&eth;&icirc;&acirc;&aring;&auml;&aring;&iacute;&iacute;&agrave;&yuml; &egrave;&ccedil; &ecirc;&icirc;&iacute;&ouml;&agrave; &aring;&aring; &igrave;&aring;&iacute;&uuml;&oslash;&aring;&atilde;&icirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;, &auml;&aring;&euml;&egrave;&ograve; &aring;&aring; &aacute;&icirc;&euml;&uuml;&oslash;&aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&aring; &iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&egrave; 6 &ntilde;&igrave; &egrave; 14
&ntilde;&igrave;. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
4. &Acirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc;&aring; ABC &iuml;&eth;&icirc;&acirc;&aring;&euml;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; A &egrave; C . &Ograve;&icirc;&divide;&ecirc;&egrave; P &egrave; Q &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&icirc;&acirc; &icirc;&iuml;&oacute;&ugrave;&aring;&iacute;&iacute;&ucirc;&otilde; &egrave;&ccedil; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&ucirc; B
&iacute;&agrave; &yacute;&ograve;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc;. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; P Q||AC .
1. &Ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; T &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute; AD &egrave; BC &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&icirc;&atilde;&eth;&agrave;&igrave;&igrave;&agrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &iuml;&eth;&yuml;&igrave;&ucirc;&aring; AT &egrave; CM &auml;&aring;&euml;&yuml;&ograve; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&uuml; BD &iacute;&agrave;
&ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
2. &Oacute;&atilde;&icirc;&euml; &iuml;&eth;&egrave; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&aring; A &eth;&icirc;&igrave;&aacute;&agrave; ABCD &eth;&agrave;&acirc;&aring;&iacute; 60◦ . &Iacute;&agrave; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&agrave;&otilde; AB &egrave; BC &acirc;&ccedil;&yuml;&ograve;&ucirc; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; N , &iuml;&eth;&egrave;&divide;&aring;&igrave; AM = BN .
&Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc; DM N &eth;&agrave;&acirc;&iacute;&icirc;&ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&iacute;&egrave;&eacute;.
3. &Acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&eth;&icirc;&acirc;&aring;&auml;&aring;&iacute;&iacute;&agrave;&yuml; &egrave;&ccedil; &ecirc;&icirc;&iacute;&ouml;&agrave; &aring;&aring; &igrave;&aring;&iacute;&uuml;&oslash;&aring;&atilde;&icirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;, &auml;&aring;&euml;&egrave;&ograve; &aring;&aring; &aacute;&icirc;&euml;&uuml;&oslash;&aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&aring; &iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&egrave; 6 &ntilde;&igrave; &egrave; 14
&ntilde;&igrave;. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
4. &Acirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc;&aring; ABC &iuml;&eth;&icirc;&acirc;&aring;&euml;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; A &egrave; C . &Ograve;&icirc;&divide;&ecirc;&egrave; P &egrave; Q &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&icirc;&acirc; &icirc;&iuml;&oacute;&ugrave;&aring;&iacute;&iacute;&ucirc;&otilde; &egrave;&ccedil; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&ucirc; B
&iacute;&agrave; &yacute;&ograve;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc;. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; P Q||AC .
1. &Ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; T &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute; AD &egrave; BC &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&icirc;&atilde;&eth;&agrave;&igrave;&igrave;&agrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &iuml;&eth;&yuml;&igrave;&ucirc;&aring; AT &egrave; CM &auml;&aring;&euml;&yuml;&ograve; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&uuml; BD &iacute;&agrave;
&ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
2. &Oacute;&atilde;&icirc;&euml; &iuml;&eth;&egrave; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&aring; A &eth;&icirc;&igrave;&aacute;&agrave; ABCD &eth;&agrave;&acirc;&aring;&iacute; 60◦ . &Iacute;&agrave; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&agrave;&otilde; AB &egrave; BC &acirc;&ccedil;&yuml;&ograve;&ucirc; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; N , &iuml;&eth;&egrave;&divide;&aring;&igrave; AM = BN .
&Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc; DM N &eth;&agrave;&acirc;&iacute;&icirc;&ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&iacute;&egrave;&eacute;.
3. &Acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&eth;&icirc;&acirc;&aring;&auml;&aring;&iacute;&iacute;&agrave;&yuml; &egrave;&ccedil; &ecirc;&icirc;&iacute;&ouml;&agrave; &aring;&aring; &igrave;&aring;&iacute;&uuml;&oslash;&aring;&atilde;&icirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;, &auml;&aring;&euml;&egrave;&ograve; &aring;&aring; &aacute;&icirc;&euml;&uuml;&oslash;&aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&aring; &iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&egrave; 6 &ntilde;&igrave; &egrave; 14
&ntilde;&igrave;. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
4. &Acirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc;&aring; ABC &iuml;&eth;&icirc;&acirc;&aring;&euml;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; A &egrave; C . &Ograve;&icirc;&divide;&ecirc;&egrave; P &egrave; Q &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&icirc;&acirc; &icirc;&iuml;&oacute;&ugrave;&aring;&iacute;&iacute;&ucirc;&otilde; &egrave;&ccedil; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&ucirc; B
&iacute;&agrave; &yacute;&ograve;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc;. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; P Q||AC .
1. &Ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; T &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute; AD &egrave; BC &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&icirc;&atilde;&eth;&agrave;&igrave;&igrave;&agrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &iuml;&eth;&yuml;&igrave;&ucirc;&aring; AT &egrave; CM &auml;&aring;&euml;&yuml;&ograve; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&uuml; BD &iacute;&agrave;
&ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
2. &Oacute;&atilde;&icirc;&euml; &iuml;&eth;&egrave; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&aring; A &eth;&icirc;&igrave;&aacute;&agrave; ABCD &eth;&agrave;&acirc;&aring;&iacute; 60◦ . &Iacute;&agrave; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&agrave;&otilde; AB &egrave; BC &acirc;&ccedil;&yuml;&ograve;&ucirc; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; N , &iuml;&eth;&egrave;&divide;&aring;&igrave; AM = BN .
&Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc; DM N &eth;&agrave;&acirc;&iacute;&icirc;&ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&iacute;&egrave;&eacute;.
3. &Acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&eth;&icirc;&acirc;&aring;&auml;&aring;&iacute;&iacute;&agrave;&yuml; &egrave;&ccedil; &ecirc;&icirc;&iacute;&ouml;&agrave; &aring;&aring; &igrave;&aring;&iacute;&uuml;&oslash;&aring;&atilde;&icirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;, &auml;&aring;&euml;&egrave;&ograve; &aring;&aring; &aacute;&icirc;&euml;&uuml;&oslash;&aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&aring; &iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&egrave; 6 &ntilde;&igrave; &egrave; 14
&ntilde;&igrave;. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
4. &Acirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc;&aring; ABC &iuml;&eth;&icirc;&acirc;&aring;&euml;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; A &egrave; C . &Ograve;&icirc;&divide;&ecirc;&egrave; P &egrave; Q &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&icirc;&acirc; &icirc;&iuml;&oacute;&ugrave;&aring;&iacute;&iacute;&ucirc;&otilde; &egrave;&ccedil; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&ucirc; B
&iacute;&agrave; &yacute;&ograve;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc;. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; P Q||AC .
1. &Ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; T &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute; AD &egrave; BC &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&icirc;&atilde;&eth;&agrave;&igrave;&igrave;&agrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &iuml;&eth;&yuml;&igrave;&ucirc;&aring; AT &egrave; CM &auml;&aring;&euml;&yuml;&ograve; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&uuml; BD &iacute;&agrave;
&ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
2. &Oacute;&atilde;&icirc;&euml; &iuml;&eth;&egrave; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&aring; A &eth;&icirc;&igrave;&aacute;&agrave; ABCD &eth;&agrave;&acirc;&aring;&iacute; 60◦ . &Iacute;&agrave; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&agrave;&otilde; AB &egrave; BC &acirc;&ccedil;&yuml;&ograve;&ucirc; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; N , &iuml;&eth;&egrave;&divide;&aring;&igrave; AM = BN .
&Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc; DM N &eth;&agrave;&acirc;&iacute;&icirc;&ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&iacute;&egrave;&eacute;.
3. &Acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&eth;&icirc;&acirc;&aring;&auml;&aring;&iacute;&iacute;&agrave;&yuml; &egrave;&ccedil; &ecirc;&icirc;&iacute;&ouml;&agrave; &aring;&aring; &igrave;&aring;&iacute;&uuml;&oslash;&aring;&atilde;&icirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;, &auml;&aring;&euml;&egrave;&ograve; &aring;&aring; &aacute;&icirc;&euml;&uuml;&oslash;&aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&aring; &iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&egrave; 6 &ntilde;&igrave; &egrave; 14
&ntilde;&igrave;. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
4. &Acirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc;&aring; ABC &iuml;&eth;&icirc;&acirc;&aring;&euml;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; A &egrave; C . &Ograve;&icirc;&divide;&ecirc;&egrave; P &egrave; Q &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&icirc;&acirc; &icirc;&iuml;&oacute;&ugrave;&aring;&iacute;&iacute;&ucirc;&otilde; &egrave;&ccedil; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&ucirc; B
&iacute;&agrave; &yacute;&ograve;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc;. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; P Q||AC .
1. &Ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; T &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&ucirc; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute; AD &egrave; BC &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&icirc;&atilde;&eth;&agrave;&igrave;&igrave;&agrave; ABCD. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &iuml;&eth;&yuml;&igrave;&ucirc;&aring; AT &egrave; CM &auml;&aring;&euml;&yuml;&ograve; &auml;&egrave;&agrave;&atilde;&icirc;&iacute;&agrave;&euml;&uuml; BD &iacute;&agrave;
&ograve;&eth;&egrave; &eth;&agrave;&acirc;&iacute;&ucirc;&aring; &divide;&agrave;&ntilde;&ograve;&egrave;.
2. &Oacute;&atilde;&icirc;&euml; &iuml;&eth;&egrave; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&aring; A &eth;&icirc;&igrave;&aacute;&agrave; ABCD &eth;&agrave;&acirc;&aring;&iacute; 60◦ . &Iacute;&agrave; &ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&agrave;&otilde; AB &egrave; BC &acirc;&ccedil;&yuml;&ograve;&ucirc; &ntilde;&icirc;&icirc;&ograve;&acirc;&aring;&ograve;&ntilde;&ograve;&acirc;&aring;&iacute;&iacute;&icirc; &ograve;&icirc;&divide;&ecirc;&egrave; M &egrave; N , &iuml;&eth;&egrave;&divide;&aring;&igrave; AM = BN .
&Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc; DM N &eth;&agrave;&acirc;&iacute;&icirc;&ntilde;&ograve;&icirc;&eth;&icirc;&iacute;&iacute;&egrave;&eacute;.
3. &Acirc;&ucirc;&ntilde;&icirc;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&icirc;&aacute;&icirc;&ecirc;&icirc;&eacute; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;, &iuml;&eth;&icirc;&acirc;&aring;&auml;&aring;&iacute;&iacute;&agrave;&yuml; &egrave;&ccedil; &ecirc;&icirc;&iacute;&ouml;&agrave; &aring;&aring; &igrave;&aring;&iacute;&uuml;&oslash;&aring;&atilde;&icirc; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml;, &auml;&aring;&euml;&egrave;&ograve; &aring;&aring; &aacute;&icirc;&euml;&uuml;&oslash;&aring;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&aring; &iacute;&agrave; &icirc;&ograve;&eth;&aring;&ccedil;&ecirc;&egrave; 6 &ntilde;&igrave; &egrave; 14
&ntilde;&igrave;. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &ograve;&eth;&agrave;&iuml;&aring;&ouml;&egrave;&egrave;.
4. &Acirc; &ograve;&eth;&aring;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&egrave;&ecirc;&aring; ABC &iuml;&eth;&icirc;&acirc;&aring;&euml;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc; &oacute;&atilde;&euml;&icirc;&acirc; A &egrave; C . &Ograve;&icirc;&divide;&ecirc;&egrave; P &egrave; Q &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; &iuml;&aring;&eth;&iuml;&aring;&iacute;&auml;&egrave;&ecirc;&oacute;&euml;&yuml;&eth;&icirc;&acirc; &icirc;&iuml;&oacute;&ugrave;&aring;&iacute;&iacute;&ucirc;&otilde; &egrave;&ccedil; &acirc;&aring;&eth;&oslash;&egrave;&iacute;&ucirc; B
&iacute;&agrave; &yacute;&ograve;&egrave; &aacute;&egrave;&ntilde;&ntilde;&aring;&ecirc;&ograve;&eth;&egrave;&ntilde;&ucirc;. &Auml;&icirc;&ecirc;&agrave;&aelig;&egrave;&ograve;&aring;, &divide;&ograve;&icirc; P Q||AC .
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