Question

The area of a circle equals to 5 cm2. Find the radius of the circle.

Answer 1

Explanation:

First, we must know the formula to finding the area.

`A=r^2\pi`

Now rearrange the formula so that you can find the radius.

`r=\sqrt{(A)/(\pi ) }`

`r=\sqrt{(5)/(\pi ) }`

`r=√(1.6)`

So, the radius of a circle that has an area of 5 cm² is about 1.3 cm.