document.write( "Question 416509: How do you find the measures of interior angles on a pentagon? \n" ); document.write( "
Algebra.Com's Answer #291807 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How do you find the measures of interior angles on a pentagon? \n" ); document.write( "--- \n" ); document.write( "If it's a regular pentagon, \n" ); document.write( "there are 5 exterior angles. \n" ); document.write( "--- \n" ); document.write( "Sum of those angles is 360 \n" ); document.write( "--- \n" ); document.write( "Each ext. angle is 360/5 = 72 degrees. \n" ); document.write( "==== \n" ); document.write( "So, each interior angle is 180-72 = 108 degrees. \n" ); document.write( "============================= \n" ); document.write( "Another way to do it. \n" ); document.write( "Sum of the interior angles is (n-2)180 = 3*180 = 540 \n" ); document.write( "Then 540/5 = 108 degrees. \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |