Question

Find the measure of exterior angle of a regular polygon of 9 sides

• A. ${40}^o$
• B. ${60}^o$
• C. ${50}^o$
• D. ${30}^o$

Answer 1

The correct option is A ${40}^o$

Each exterior angle of a regular polygon of 9 sides
$=\frac{{360}^o}{n}$where n= 9
$=\frac{{360}^o}{9}={40}^o$