- A65°
- B75°
- C105°
- D85°
Step-by-Step Solution
When OA is not on 0, subtract the two readings: 85 − 20 = 65°. (105° adds them.)
Answer: A) 65°
Meena put arm OA on the 20 mark instead of 0, and OB crossed at 85 on the same scale. She wrote ∠AOB = 85°. What is the correct measure?
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