3 years ago

A. 21 degrees B. 42 degrees C. 63 degrees D. 126 degrees

Mathematics

2 answers:

My name is Ann [436]3 years ago

7 0

Answer:

D. 126 degrees

Step-by-step explanation:

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

ZanzabumX [31]3 years ago

3 0

Answer:

126

Step-by-step 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

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