document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=699232>Question 699232</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many diagonals can be drawn from a vertex of an n-gon?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #431262 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=431262\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many diagonals can be drawn from a vertex of an n-gon? <BR>\n" );
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document.write( "# of line segments joining 2 vertices = nC2 = [n(n-1)]/(2)<BR>\n" );
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document.write( "# of those line segments that are sides of the n-gon: n<BR>\n" );
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document.write( "Therefore, # of diagonals: nC2-n = [n(n-1)]/2 - n<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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