Question 27
Angles and PolygonsEach interior angle of a regular nonagon (nine sided polygon) is equal to
- A.160°
- B.144°
- C.140°
- D.132°
- E.36°
Show the answer and explanation
Answer: C (140°)
Explanation
Each exterior angle is 360° ÷ 9 = 40°, so each interior angle is 180° − 40° = 140°.