document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=476730>Question 476730</A>: <I><SPAN STYLE=\"word-break: break-all;\"> use the combinations formula to write an expression for the number of line segments that join pairs of verticies on an n-sided polygon.<BR>\n" );
document.write( "use your result from part (a) to write formula for the numbber of diagonals of an n-sided convex polygon. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #326878 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=326878\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> use the combinations formula to write an expression for the number of line segments that join pairs of verticies on an n-sided polygon.<BR>\n" );
document.write( "Ans: nC2 = [n(n-1)]/(1*2) = (n/2)(n-1)<BR>\n" );
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document.write( "use your result from part (a) to write formula for the number of diagonals of an n-sided convex polygon.<BR>\n" );
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document.write( "n of the lines from (a) are sides of the polygon.<BR>\n" );
document.write( "# of diagonals is (n/2)(n-1)-n<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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