- A20°
- B40°
- C80°
- D160°
Step-by-Step Solution
The angle at the centre is twice the angle at any point on the remaining circle, so the angle is 80° ÷ 2 = 40°.
Answer: B) 40°
An arc of a circle subtends an angle of 80° at the centre. The angle it subtends at any point on the remaining part of the circle is:
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