Question

12 points! The interior angles formed by the sides of a hexagon have measures that some to 720°. What is the measure of angle F?

Answer 1

Sum would be equal to 720.
so, x-60 + x-40 + 130 + 120 + 110 + x-20 = 720
3x + 240 = 720
3x = 720 - 240
x = 480/3
x = 160 

Angle F = x-20 = 160 - 20 = 140

In short, Your Answer would be 140

Hope this helps!