document.write( "Question 260429: \"What is the number of triangles formed in a decagon when all the diagonals from one vertex are drawn?\"\r
\n" ); document.write( "\n" ); document.write( " What does this mean and how do I figure it out?
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Algebra.Com's Answer #191821 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
\"What is the number of triangles formed in a decagon when all the diagonals from one vertex are drawn?\"
\n" ); document.write( "What does this mean and how do I figure it out?
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\n" ); document.write( "look for a pattern:
\n" ); document.write( "4 sides (square): # of tiangles = 2
\n" ); document.write( "5 sides (pentagon): # of triangles = 3
\n" ); document.write( "6 sides (sexagon); # of triangles = 4
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\n" ); document.write( "10 sides (decagon: # of triangles = ?
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\n" ); document.write( "Cheers,
\n" ); document.write( "stan H.
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