document.write( "Question 1056455: Find the measure of each interior angle of a regular 21-gon. \n" ); document.write( "
Algebra.Com's Answer #671562 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Find the measure of each interior angle of a regular 21-gon. \n" ); document.write( "------ \n" ); document.write( "Step 1, exterior angles = 360/21 \n" ); document.write( "-- \n" ); document.write( "The sum of exterior angles of all polygons is 360 degs \n" ); document.write( "--- \n" ); document.write( "Step 2, interior angles = 180 - exterior angle. \n" ); document.write( " \n" ); document.write( " |