Question

If the area of circular ground is 616m², find its circumference.​

Answer 1

Answer:
`4√(154\pi)`

Explanation:

`A=\pi r^2\\\\616=\pi r^2\\\\r^2 =(616)/(\pi)\\\\r=\sqrt{(616)/(\pi)}\\\\\\\\\\C=2\pi r\\\\C=2\pi \sqrt{(616)/(\pi)}\\\\C=4√(154\pi)`