document.write( "Question 271113: the sum of the interior angles of a polygon is 1260 degree.what is the number of sides of this polygon \n" ); document.write( "
Algebra.Com's Answer #198516 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Let n=number of sides. \n" ); document.write( "180(n-2)=1260 \n" ); document.write( "n-2=7 \n" ); document.write( "n=9 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |