document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=777906>Question 777906</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A regular polygon  has 45 sides. What is the size of an interior angle? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #474322 by </B><A HREF=/tutors/aboutme.mpl?userid=FrankM><B>FrankM(1040)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=FrankM><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=FrankM><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=474322\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In your mind, find the center of this polygon. A line is drawn from center to every vertex, 45 lines radiating out. 360/45 is 8 degrees, right? So each triangle you made has one 8 degree angle. \r<BR>\n" );
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document.write( "180-8=172 which is the answer you seek. \r<BR>\n" );
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document.write( "Now 172 is the total of the other 2 angles, so half is 86, but it takes two to form the full angle you are measuring. The above approach can easily be followed for any N sided polygon. \r<BR>\n" );
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document.write( "(Note - 8 is the small angle of the imaginary triangle in your figure. The polygon itself has 45 sides, and 8 degrees doesn't appear until we go through the thought process to solve the problem, it's there as an intermediate step only.) </SPAN>\n" );
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