1.

The internal angle of a regular polygon is 156°. How many sides are there in the polygon?1. 122. 153. 164. 18

Answer» Correct Answer - Option 2 : 15

 

Formula used :

External angle = 180° - internal angle

Number of sides of polygon = 360/(external angle)

Calculation :

Internal angle = 156°

⇒ External angle = 180° - 156°

⇒ External angle = 24°

⇒ Number of sides of regular polygon = 360°/24°

⇒ Number of sides of regular polygon = 15

∴ The number of sides of the regular polygon is 15.



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