Question

The area of a circle is 616cm find the radius​

Answer 1

• Area of circle = 616 cm

We need to calculate the radius.

We know that :

• A = πr^2

Here,

• A is area
• r is radius

Substituting values :

> 616 = (22/7) × r^2

> 616 = 22r^2 / 7

> 616 × 7 = 22r^2

> 22r^2 = 4312

> r^2 = 4312 / 22

> r^2 = 2156 / 11

> r^2 = 196

> r = 14