document.write( "Question 760534: The sum of the measure of the interior angles of a polygon is 1980°.\r
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document.write( "What polygon is it?
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Algebra.Com's Answer #462705 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The sum of the measure of the interior angles of a polygon is 1980°. \n" ); document.write( "----- \n" ); document.write( "(n-1)*180 = 1980 \n" ); document.write( "----- \n" ); document.write( "n-1 = 11 \n" ); document.write( "---- \n" ); document.write( "n = 12 \n" ); document.write( "----- \n" ); document.write( "Ans: duodecagon \n" ); document.write( "============= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============= \n" ); document.write( " |