document.write( "Question 260429: \"What is the number of triangles formed in a decagon when all the diagonals from one vertex are drawn?\"\r
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document.write( " What does this mean and how do I figure it out? \n" );
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Algebra.Com's Answer #191821 by stanbon(75887)![]() ![]() ![]() 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? \n" ); document.write( "--------------------------------------------- \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 \n" ); document.write( "---- \n" ); document.write( "--- \n" ); document.write( "10 sides (decagon: # of triangles = ? \n" ); document.write( "======================================== \n" ); document.write( "Cheers, \n" ); document.write( "stan H. \n" ); document.write( " |