Question

Help me please
calculate the value of x in the polygon

Answer 1

122.5 degrees

Explanation:

A six sided polygon's interior angles sum to

(n-2)(180) = (6-2) (180) = 720 degrees

then x + x + x + x+10 + 130 + 90 = 720

4x = 490 so x = 122.5 degrees