contestada

Find the number of sides of a regular polygon if one interior angle is 120 degrees.
A.4
B.6
C.3
D.5

Respuesta :

Answer:

B. 6 sides

Step-by-step 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
6 sides hope this helps!!!

Otras preguntas