The Exterior Angle of Regular Polygon is the angle between one side of the polygon and the line extending from the next side of the polygon. And is denoted by ∠Exterior. Exterior Angle of Regular Polygon is usually measured using the Degree for Angle. Note that the value of Exterior Angle of Regular Polygon is always positive. Typically, the value of Exterior Angle of Regular Polygon lies in the range from 0 to 180.