Interior Angles and Exterior Angles of Polygons

4.2 Interior Angles and Exterior Angles of Polygons

4.2

Interior Angles and Exterior Angles of Polygons

Interior angle	It is an angle that is shaped by two adjacent sides of a polygon. Angle \(a, b, \) and \(c\) are interior angles. Interior angle \(= \dfrac{(n-2) \times 180^{\circ}}{n}\) Total sum of interior angles \(= (n-2) \times 180^{\circ} \)
Exterior angle	It is an angle that is formed when one side of the polygon is extended. It is also known as a complement to an interior angle of the polygon. Exterior angle \(= \dfrac{360^{\circ}}{n}\) Total sum of exterior angles \(= 360^{\circ} \)

Quick Notes