Each of the interior angles of a regular polygon is 140o. How many sides has the polygon?
Correct Option:
A
For a regular polygon of n sides
n = \(\frac{360}{\text{Exterior angle}}\)
Exterior < = 180o - 140o
= 40o
n = \(\frac{360}{40}\)
= 9 sides
n = \(\frac{360}{\text{Exterior angle}}\)
Exterior < = 180o - 140o
= 40o
n = \(\frac{360}{40}\)
= 9 sides