Find The Measure Of One Exterior Angle Of A Regular Polygon That Has 21 Sides. Since the polygon is regular the measure of all the interior angles is the same. Each interior angle 144010.
Find the sum and difference. 120 degrees is the measure of the exterior angle. 180 - 120 in order to find out the exterior angle 180 - 120 60 So then the exterior angle should be 60.
Measure of a Single Exterior Angle Formula to find 1 angle of a regular convex polygon of n sides.
A direct formula for the interior angle. Measure of a Single Interior Angle. A direct formula for the interior angle. Each exterior angle of a regular polygon with n sides is 360n degrees.