Interior And Exterior Angles Of Polygons Corbettmaths. In a regular polygon. Solution a Interior angle exterior angle 180 Interior angle 180 40 140 b The number of sides can be determined by dividing 360 by the size of the exterior angles giving 360 40 9 so the polygon has 9 sides.
The interior angles of a shape are the angles inside the shape. In this video I will take you through everything you need to know in order to answer basic questions about the angles of polygons. Work out the number of sides of the regular polygon.
Consider for instance the pentagon pictured below.
Tes classic free licence. If the exterior. The sum of the exterior angles of a polygon is 360. Interior and exterior angles worksheet corbettmaths.