document.write( "Question 491952: How many diagonals are there in a regular polygon of n sides? \n" ); document.write( "
Algebra.Com's Answer #334870 by stanbon(75887)\"\" \"About 
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How many diagonals are there in a regular polygon of n sides?
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\n" ); document.write( "There are n vertices
\n" ); document.write( "# of line segments determined is nC2 = (n/2)(n-1)
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\n" ); document.write( "n of those line segments are sides of the polygon
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\n" ); document.write( "Ans: There are (n/2)(n-1) - n diagonals
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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