Question

find the radius of the circle whose area is 616 centimetre square

Answer 1

Area of circle
$= \pi {r}^{2} \\ 616 = \frac{22}{7} \times {r}^{2} \\ \\ {r}^{2} = 616 \times \frac{7}{22} \\ {r}^{2} = 28 \times 7 \\ {r}^{2} = 196 \\ r = \sqrt{196} \\ r = 14cm$
Hope it helps uhh

Answer 2

Yo!
Your Answer.

Area of circle = π r² = 616 cm²

So,

π r² = 616

22/7 * r² = 616

r² = 616 * 7/22

r² = 196

r = √196

r = 14 cm