document.write( "Question 760534: The sum of the measure of the interior angles of a polygon is 1980°.\r
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Algebra.Com's Answer #462705 by stanbon(75887)\"\" \"About 
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The sum of the measure of the interior angles of a polygon is 1980°.
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\n" ); document.write( "(n-1)*180 = 1980
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\n" ); document.write( "n-1 = 11
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\n" ); document.write( "n = 12
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\n" ); document.write( "Ans: duodecagon
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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