n fig. <ABC= 20° then what is the measure of ⟨ AOC
20°,40°,60°,10°?
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Answer:
Given, ∠ABC = 20°
We know that, angle subtended at the centre by an arc is twice the angle subtended by it at the remaining part of circle.
∠AOC = 2∠ABC = 2 x 20° = 40°
Step-by-step explanation:
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