Question

The diagram shows a regular decagon please help

Answer 1

36°

Explanation:

`size \: of \: one \: exterior \: angle \\ \\ = (360 \degree)/(no \: of \: sides) \\ \\ = (360 \degree)/(10) \\ \\ = 36 \degree`

Answer 2

Exterior Angle = 36 degrees

Explanation:

The measure of each interior angle of the decagon is 144

So,

Exterior Angle = 180 - 144 (Interior and Exterior angles are angles on a straight line hence adding up to 180 degrees)

Exterior Angle = 36 degrees