Answer: green angle = 76 degree
Solution:
We can use interior angle properly of a triangle to find it.
Exterior angle = sum of interior angles
So, 116 = 4x + (7x + 6)
11x + 6 = 116
11x = 116 - 6
11x = 110
x = 110/11 = 10
So, angles = 4 x 10 = 40
7 x 10 + 6 = 70 + 6 = 76
Green angle: 76 degree
