babyychina
babyychina
24-06-2017
Mathematics
contestada
find m A. 20
B. 40
C. 60
D.120
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Banabanana
Banabanana
24-06-2017
∠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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baileykaleb00
baileykaleb00
25-06-2017
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.
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