Question

The area t circle is 616² m . Find it's circumference.​

Answer 1

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Area of circle = 616 m²

Also,

Area of circle = πr²

πr² = 616

22/7 × r² = 616

r² = 196

r = 14 m

Now,

Circumference of circle = 2πr

= 2 × 22/7 × 14

= 88 m.