The area of circle is 38.5 sq. cm. Its circumference is?

Question

Accepted Answer

∵ ( 22 x r2) / 7 = 38.5 ⇒ r2 =(38.5 x 7) /22 ∴ r = 3.5 cm ∴ Circumference = 2 x (22/7) x 3.5 cm = 22 cm

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