Question

The area of a circle is 616 sq.cm. its radius is

Answer 1

Answer:

Area of a circle = 22/7×r^2

616sq.cm= 22/7 ×r^2

616cm×cm×7/22=r^2

196cm×cm=r^2

14cm = r

So , Radius = 14 cm..

Answer 2

Answer:

hi bro

Area of a circle = πr²

$a = \pi \: r {}^{2} \\ r = \sqrt{ \frac{a}{\pi} } \\ r = \sqrt{ \frac{616}{ \frac{22}{7} } } \\ r = 14.00282cm$

Hope this will help you