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