Question

If one interior angle of polygon 120 degrees has sides

Answer 1

The interior angle of the polygon is 120°.
The formula to find the interior angle of a polygon is 180(n-2)/n where n is the number of sides of the polygon.

So, 180(n-2)/n = 120
Solving the equation,

180n - 360 = 120n
180n - 120n = 360
60n = 360
n = 6

Therefore, polygon has 6 sides.

Hope it helps.

Answer 2

the polygon has 6 sides.
180(n-2)/n = 120
180n - 360/n = 120
180n - 360 = 120n
180n - 120n = 360
60n = 360
n = 6.