The length of an arc of angle 60° in a circle of radius 21 cm is (π = 22/7)
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Answer: B. 22 cm
(60/360) × 2 × (22/7) × 21 = (1/6) × 132 = 22 cm.
Tap an answer to check.
Answer: B. 22 cm
(60/360) × 2 × (22/7) × 21 = (1/6) × 132 = 22 cm.