document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=843190>Question 843190</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of the measures of the vertex angles of a certain polygon is 2880. How many sides does the polygon have? I got the answer as 18, but I am not entirely sure how. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #507985 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=507985\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the sum of the vertex angles is 2880.<BR>\n" );
document.write( "the sum of the angles of a polygon is given by the equation:<BR>\n" );
document.write( "S = (n-2)*180\r<BR>\n" );
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document.write( "you have S.<BR>\n" );
document.write( "you need to solve for n.\r<BR>\n" );
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document.write( "your equation is:\r<BR>\n" );
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document.write( "2880 = (n-2) * 180<BR>\n" );
document.write( "divide both sides of this equation by 180 to get:<BR>\n" );
document.write( "16 = n-2<BR>\n" );
document.write( "add 2 to both sides of the equation to get:<BR>\n" );
document.write( "n = 18\r<BR>\n" );
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document.write( "your answer is correct.<BR>\n" );
document.write( "the formula to use is:<BR>\n" );
document.write( "S = (n-2) * 180\r<BR>\n" );
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document.write( " </SPAN>\n" );
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