Answer:
x=40
Step-by-step explanation:
The ploygon has 6 sides. The sum of the interior angles of a polygon with n sides is (n – 2)180.
(6-2) *180
4*180 = 720
The total of the sum of the angles is 720
We have 6 interior angles of 3x
6*3x = 720
18x = 720
Divide each side by 18
18x/18 = 720/18
x=40
