2 years ago

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

2 answers:

7 0

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.

Hatshy [7]2 years ago

4 0

∠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°

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