Find m A. 20 B. 40 C. 60 D.120

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asked Mar 21, 2018 189k views

2 Answers

Kenny Horna · Answer 1 · 2018-03-23T19:41:14+0000

the answer is C.

I only know this because it is an acute angle so "D" is wrong. It is also too wide to be "A" or "B" so the only of that is left is "C". through process of elimination.

Khoi Nguyen · Answer 2 · 2018-03-25T01:45:06+0000

∠FEG is an exterior angle.
An exterior angle of a triangle is equal to the sum of the opposite interior angles, so

2x + x = x + 40
3x = x + 40
3x - x = 40
2x = 40
x = 20

m∠FEG = x+40 = 20+40 = 60°

Find m A. 20 B. 40 C. 60 D.120

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