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An arc of a circle subtends an angle of 300 on the circumference of a circle of radius ...

An arc of a circle subtends an angle of 300 on the circumference of a circle of radius 21cm. Find the length of the arc.
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  • A 11cm
  • B 22cm
  • C 44cm
  • D 66cm
Correct Answer: Option A
Explanation:

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