Respuesta :

josshyaby

Answer:

Step-by-step explanation:

Interior angle = (n - 2)180/n

120 = (n - 2)180/n

120n = (n - 2)180

120n = 180n - 360

360= 180n - 120n

360 = 60n

n = 360/60

n = 6

The polygon as 6sides