Find The Measure Of One Exterior Angle Of A Regular Polygon That Has 21 Sides. A polygon is a plane shape bounded by a finite chain of straight lines. Measure of a Single Interior Angle.
Therefore all its exterior angles measure the same as well that is 120 degrees. The measure of an interior angle of a regular polygon is 20 more than thrice the measure of its adjacent exterior angle. In this case the measure of the angle is 36021.
Each exterior angle of a regular polygon with n sides is 360n degrees.
The sum of interior angles of polygon of 10 sides is n 2 180 n is number of sides of polygon 10 2 x 180 1440. The sum of the measures of the exterior angles of a polygon one at each vertex is 360. 720 6 120 Afterwards you do. Find the angle Find the angle sum of the interior angles of the polygon.