Question

interior angle of a regular polygon is 120 degree find the number of sides of this regular polygon​

Answer 1

Answer:

2 whole 2/3 or 8/3

Answer 2

Answer:

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Interior angle a regular polygon of n sides = (n - 2) × 180 / n

(n - 2) × 180 / n = 120

(n - 2) × 180 = 120n  

180n - 360 = 120n  

60n = 360

n = 6

∴ The regular polygon has 6 sides(hexagon).

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