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Each internal angle of regular polygon is two times its external angle. Then the number of sides of the polygon is :
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- 8
- 6
- 5
- 7
- 8
Correct Option: B
According to question ,
Each internal angle of regular polygon is two times its external angle .
Let the number of sides of regular polygon be n.
| ∴ |  |  | × 90° = 2 × | ||
| n | n |
⇒ (2n – 4) = 8
⇒ 2n = 12
⇒ n = 6
