Question

One side of a regular pentagon is extended to create an external angle. What is the measure of such exterior angle?

Answer 1

The measure of exterior angle is `72^@`.

Explanation:

In a regular polygon, all exterior angles are equal and their sum is `360^@`.

As a regular pentagon has five sides and five exterior angles, all equal,

the measure of exterior angle is `(360^@)/5=72^@`.