Question : In a circle with centre O, arc CD subtends an angle of 60° at the centre of the circle whose radius is 21 cm. Calculate the length of the arc CD.
Option 1: 20 cm
Option 2: 18 cm
Option 3: 24 cm
Option 4: 22 cm
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Answer (1)
23rd Jan, 2024
Correct Answer: 22 cm
Solution :
Given: Radius,
Arc length =
Hence, the correct answer is 22 cm.
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