Question

Find the number of sides of a regular polygon if one interior angle is 120 degrees A3 B4 C5 D6​

Answer 1

n = 6

Explanation

Number of sides = 360/Measure of exterior

Measure of exterior = 180 - interior angle

Exterior angle = 180 - 120

Exterior angle = 60 degrees

Substitute into the formula

number of sides = 360/60

number of sides = 6

Hence the number of sides required is 6