Question

If the area of a circle is 616 sq cm, find its circumference.​

Answer 1

hey mate!:)

Answer:

88cm

Step-by-step explanation:

Given: 616 sq cm.

To Find: Its circumference

Solution: The area of a circle= πr2

=> 616 = πr2

=> r2 = $\frac{616}{\pi}$

=> r2 = 616/22×7

=> therefore= π = 22/7

=> r2 = 28×7

=> r = √(28×7)= 14 cm

=> Circumference of a circle 2πr

=> 2 × 22/ 7 × 14

=> Circumference of circle = 88cm

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