The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees. 1440 degrees Wiki User ∙11yago This answer is: Add your answer: Earn +20pts Q:What is the sum of the measures of the angle of a decagon?
The sum of angles in a polygon depends on the number of edges and vertices of a polygon. The sum of the angles in a polygon is calculated for two types of angles of a polygon which are Interior angle and Exterior Angle.
what are the exterior Angles of a hexagon, heptagon, octagon, decagon and an icosagon ?If all the exterior angles of a hexagon or any polygon equal 360, then just divide by the number of vertices and there's one exterior angle of the polygon. Does a nonconvex polygon have exterior angle...