- A115°
- B65°
- C130°
- D50°
Step-by-Step Solution
∠AOC and ∠BOD are vertically opposite, so each is . ∠BOC forms a linear pair with ∠AOC: .
Answer: A) 115°
Lines AB and CD intersect at O. If ∠AOC + ∠BOD = 130°, find ∠BOC.
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