document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=187068>Question 187068</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you find the number of sides when you have the 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 #140224 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=140224\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how do you find the number of sides when you have the interior angle?<BR>\n" );
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document.write( "Assuming it's a regular polygon, all the angles and sides are equal,<BR>\n" );
document.write( "The sum of all the interior angles is (n-2)*180, n = number of sides.<BR>\n" );
document.write( "The interior angles, then, are (n-2)*180/n.<BR>\n" );
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document.write( "A = (180n - 360)/n<BR>\n" );
document.write( "------------------Solve for n<BR>\n" );
document.write( "An = 180n - 360<BR>\n" );
document.write( "n(A - 180) = -360<BR>\n" );
document.write( "n = 360/(180 - A)<BR>\n" );
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document.write( "Not all values of A work, n has to be an integer. </SPAN>\n" );
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