Question

Find the number of sides of a regular polygon if one interior angle is 120 degrees.

A.4
B.6
C.3
D.5

Answer 1

6 sides hope this helps!!!

Answer 2

B. 6 sides

Explanation:

Interior angles of a n side Regular Polygon = (180n – 360) / n

120 = (180n – 360) / n

120n =180n - 360

180n - 120n = 360

60n = 360

n = 6

check: sum of interior angles of 6 side polygon: 180 * (6-2) = 720

720/6 = 120