passwella.
Menu

JAMB Mathematics 1981 Question 44

Question 44

Angles and Polygons

What is the size of an exterior angle of a regular pentagon?

  1. A.36°
  2. B.60°
  3. C.72°
  4. D.120°
  5. E.360°
Show the answer and explanation

Answer: C (72°)

Explanation

The exterior angles of any polygon add to 360°, so each of the 5 equal ones is 360° ÷ 5 = 72°.