document.write( "Question 1056455: Find the measure of each interior angle of a regular 21-gon. \n" ); document.write( "
Algebra.Com's Answer #671564 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! The exterior angles sum to 360 and there are 21 of them. \n" ); document.write( "Therefore, each exterior angle is 360/21=17.14 degrees \n" ); document.write( "The interior angle is the supplement, or 162.86 degrees \n" ); document.write( " |