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Svetach [21]
3 years ago
9

A. 15 B. 75 C. 100 D. 105

Mathematics
1 answer:
Julli [10]3 years ago
4 0

Answer:

B. 75

Step-by-step explanation:

According to vertical angles theorem, angles that are opposite of one another with shared lines will be equal, so we can set 5x = x +60.

Solving for x, we get x = 15, and substituting into the angle we get 15 + 60 = 75 degrees.

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