document.write( "Question 405814: The sum of the interior angle measures of a convex polygon is 1980 degrees . How many sides does it have? \n" ); document.write( "
Algebra.Com's Answer #286555 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Sum = 180*(n-2) = 1980 \n" ); document.write( "n-2 = 11 \n" ); document.write( "n = 13 \n" ); document.write( " \n" ); document.write( " |