- A80°
- B75°
- C70°
- D105°
Step-by-Step Solution
On the outer scale OB lies on the longer middle mark between 70 and 80, which is 75°.
Answer: B) 75°
Arm OA is on the 0 line. Arm OB falls between two numbered marks. What is ∠AOB?
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Ravi measured this angle and wrote 115°. Arm OA is on the 0 line on the right. What…Arms OA and OB are both drawn on this protractor. Is ∠AOB a right angle?Arm OA is on the left of the base line. What is the measure of ∠AOB?Which is the best estimate of the size of ∠AOB?Without measuring, which angle is larger: ∠AOB or ∠BOC?