👉 Learn how to determine the sum of interior angles of a polygon. A polygon is a plane shape bounded by a finite chain of ...

👉 Learn how to solve for an unknown variable in the exterior angle of a polygon. The exterior angle of a polygon is the angle between a side of the polygon and an outward extension of the adjacent ...

The sum of the angles inside any polygon can be found by spitting the polygon into triangles. Sum of interior angles = 180(n – 2) where n is the number of sides In a regular polygon all the angles are ...

Before reading this guide, it may be helpful to read the guides from Module 1 on the properties of angles and the properties of 2D shapes. The sum of the angles inside any polygon can be found by ...

Polygons can be regular or irregular in shape. A polygon is a closed 2D shape with at least three sides. A regular polygon is a polygon with all equal sides and angles. An irregular polygon is a ...