9514 1404 393
Answer:
C) 40°
Explanation:
The given angles are opposites, so will be equal to each other:
4x +4 = 6x -14
18 = 2x . . . . . . . . . . add 14-4x
9 = x
Then the angle measure is ...
∠ACD = (4(9) +4)°
∠ACD = 40°
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