- A110°
- B0°
- C70°
- D145°
Step-by-Step Solution
The inner 35 is at the same place as the outer 145 (because 180 − 35 = 145). On the outer scale the arms are at 35 and 145, so ∠AOB = 145 − 35 = 110°.
Answer: A) 110°
On a protractor, arm OA crosses the OUTER scale at 35 and arm OB crosses the INNER scale at 35. What is ∠AOB?
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