document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1144649>Question 1144649</A>: <I><SPAN STYLE=\"word-break: break-all;\"> AB is a diameter of a semicircle of cyclic quadilateral ABCD. If A =62degree, calculate B,C and D. (show working) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #765833 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52907)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=765833\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The formulation of the problem in your post is . . . m-m-m, how to say it . . . absolutely unprofessional.\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The proper formulation is this :\r<BR>\n" );
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document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "                In a cyclic quadrilateral ABCD, the side AB is the diameter of the circle.  If A = 62 degrees, find angle C.\r\n" );
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document.write( "<U>Solution</U>\r<BR>\n" );
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document.write( "Use the Theorem\r<BR>\n" );
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document.write( "    If a convex quadrilateral is inscribed in a circle, then the sum of its opposite angles is equal to &nbsp;180°.\r\n" );
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document.write( "From this theorem, you momentarily get for the angle C, which is opposite to angle A\r<BR>\n" );
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document.write( "    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;      m (C)  = 180° - m(A) = 180° - 62° = 118°.     &nbsp;&nbsp;&nbsp;&nbsp;<U>ANSWER</U>\r<BR>\n" );
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document.write( "Regarding this theorem, see the lesson\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Polygons/Quadrilateral-inscibed-in-a-circle.lesson>Quadrilateral inscribed in a circle</A>\r<BR>\n" );
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document.write( "in this site.   \r<BR>\n" );
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document.write( "And you can not determine NEITHER angle B nor D based on given condition.\r<BR>\n" );
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document.write( "You know only that  m(B) + m(D) = 180° ,  and nothing more.\r<BR>\n" );
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document.write( "===============\r<BR>\n" );
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document.write( "You should say / post your \"THANKS\" at least three times to me:\r<BR>\n" );
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document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "    - first time for explaining to you on how to formulate your problem properly;\r\n" );
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document.write( "    - second time for solving the problem for you;\r\n" );
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document.write( "    - and third time for referring you to this excellent lesson.\r\n" );
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document.write( "So, &nbsp;I really expect to get this triple &nbsp;\"THANKS\".\r<BR>\n" );
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document.write( "Also, &nbsp;you have this free of charge online textbook on Geometry\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;<A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Triangles/GEOMETRY-your-online-textbook.lesson>GEOMETRY - YOUR ONLINE TEXTBOOK</A> \r<BR>\n" );
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document.write( "in this site.\r<BR>\n" );
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document.write( "The referred lesson is the part of this online textbook under the topic &nbsp;\"<U>Properties of polygons</U>\".\r<BR>\n" );
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document.write( "Also, you can find practically every topic of the school Geometry presented in perfect logical form.\r<BR>\n" );
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document.write( "Save the link to this online textbook together with its description\r<BR>\n" );
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document.write( "Free of charge online textbook in GEOMETRY<BR>\n" );
document.write( "https://www.algebra.com/algebra/homework/Triangles/GEOMETRY-your-online-textbook.lesson\r<BR>\n" );
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document.write( "to your archive and use it when it is needed.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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