Question on: JAMB Mathematics - 2021

Each of the interior angles of a regular polygon is 140°. How many sides has the polygon?

A

9

B

8

C

7

D

5

Ask EduPadi AI for a detailed answer
Correct Option: A

Interior angles of a regular polygon = \(\frac{(n - 2)180}{n}\)

140 = \(\frac{(n - 2)180}{n}\)

140n = 180n - 360

40n = 360

n = 9 sides

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