document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1015370>Question 1015370</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if the sum of the measures of the interior angles of a polygon is 1980 degrees, how many sides does it have?<BR>\n" );
document.write( "How do I do this? Is there a formula? <BR>\n" );
document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #631719 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=631719\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "n=number of sides; S=sum of interior angles<BR>\n" );
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document.write( "S = 180(n-2)<BR>\n" );
document.write( "S/180=n-2<BR>\n" );
document.write( "(S/180)+2=n<BR>\n" );
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document.write( "(1980/180)+2=n<BR>\n" );
document.write( "11+2=n<BR>\n" );
document.write( "13=n<BR>\n" );
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document.write( "ANSWER: The polygon has 13 sides.<BR>\n" );
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document.write( " </SPAN>\n" );
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