document.write( "Question 231978: If each interior angle of a regular polygon measures 140 degrees, how many sides does the polygon have?\r
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Algebra.Com's Answer #171532 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If each interior angle of a regular polygon measures 140 degrees, how many sides does the polygon have? \n" ); document.write( "----------------- \n" ); document.write( "Sum of the angles of a polygon is (n-2)*180 \n" ); document.write( "Each angle is (n-2)*180/n \n" ); document.write( "140 = (n-2)*180/n \n" ); document.write( "140n = 180n - 360 \n" ); document.write( "-40n = -360 \n" ); document.write( "n = 9 \n" ); document.write( " \n" ); document.write( " |