Question

The interior angles formed by the sides of a hexagon have measures that sum to 720°.

What is the measure of angle F?

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Answer 1

140

Explanation:

First you want to add up the numbers inside of the hexagon and set them equal to 720. Your starting equation should be 3x+240=720. Then your going to subtract 240 from each side giving you 3x=480. Next divide each side by 3 giving you x=160. Plug 160 in for x and you should get 160-20= 140.