document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=21031>Question 21031</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the number of sides of a convex polygon if the measures of its interior angles have a sum of 1260 degrees? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #10141 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=10141\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Remember that the sum of the interior angles of a polygon is given by:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S+=+%28n-2%29180 ALIGN=MIDDLE  ALT=\"S+=+%28n-2%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" > Where S = the sum of the angles (1260 degrees in this case) and n = the number of sides of the polygon.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1260+=+%28n-2%29180 ALIGN=MIDDLE  ALT=\"1260+=+%28n-2%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by 180.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7+=+n-2 ALIGN=MIDDLE  ALT=\"7+=+n-2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Add 2 to both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+9 ALIGN=MIDDLE  ALT=\"n+=+9\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The polygon has 9 sides. </SPAN>\n" );
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