document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=28778>Question 28778</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how many diagnols are in an octogon, nonogon, decogon?¿ </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #15693 by </B><A HREF=/tutors/aboutme.mpl?userid=askmemath><B>askmemath(368)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=askmemath><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=15693\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The number of diagonals in a polygon is given by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%2A%28n-3%29%29%2F2 ALIGN=MIDDLE  ALT=\"%28n%2A%28n-3%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > where n is the number of sides<BR>\n" );
document.write( "So for a Octagog which has 8 sides <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2A5%2F2 ALIGN=MIDDLE  ALT=\"8%2A5%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 4*5 = 20<BR>\n" );
document.write( "Can you solve from here? </SPAN>\n" );
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