document.write( "Question 635136: 2. Determine how many diagonals a 20-gon has. \n" ); document.write( "
Algebra.Com's Answer #400142 by jim_thompson5910(35256)\"\" \"About 
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Hint:\r
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\n" ); document.write( "\n" ); document.write( "Any n-gon has \"n%2A%28n-3%29%2F2\" diagonals.
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