If the area of circle is 616 sq cm then its circumference?

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Question

If the area of circle is 616 sq cm then its circumference?

Options:

A . 78 m

B . 88 m

C . 75 m

D . 70 m

Answer: Option B

22/7 r² = 616 =>
r = 14

2 * 22/7 * 14 = 88

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