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Answer:
The answer is C
156°
Explanation:
4x+3x+x+120+2x+30+2x+30+3x=720
C.L.T.
15x+180=720
15x=720-180
15x=540
divide both sides by 15
15x/15=540/15
x=36°
<F=x+120
<F=36+120
<F=156°
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