Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

fjh The measure of an exterior angle of a regular 20-gon is what?

OpenStudy (anonymous):

Use (n-2)180 to find the sum of all angles in the polygon. So (20-2)180 = 3240 Dividing 3240 by 20 will give you the measure of 1 interior angle since all angles are equal. An exterior angle will just be the supplementary of an interior.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!