Answer:
126
Explanation:
The exterior angle is the sum of the opposite interior angles
x+ 84 = 3x
Subtract x from each side
84 = 2x
Divide by 2
84/2 = x
42 =x
We want angle FEG = 3x
FEG = 3x
FEG = 3*42
FEG = 126
D. 126 degrees
angle FEG is the sum of interior angles D and G.
3x = x + 84
subtract x from both sides
2x = 84
divide by 2 from both sides
x = 42
3x = 3(42) = 126
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