document.write( "Question 1050853: The exterior angle of a regular polygon is (2x + 2) degrees and its interior angle is (9x - 9) degrees. How many sides does the polygon have? \n" ); document.write( "
Algebra.Com's Answer #666472 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The exterior angle of a regular polygon is (2x + 2) degrees and its interior angle is (9x - 9) degrees. How many sides does the polygon have? \n" ); document.write( "---- \n" ); document.write( "The angles are supplementary:: \n" ); document.write( "(2x+2) + 9x-9 = 180 \n" ); document.write( "11x - 7 = 180 \n" ); document.write( "11x = 187 \n" ); document.write( "x = 17 \n" ); document.write( "---- \n" ); document.write( "The exterior angle = 2x+2 = 36 \n" ); document.write( "------ \n" ); document.write( "# of sides = 360/36 =10 \n" ); document.write( "----------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------------- \n" ); document.write( " |