Question

If the area of a circle is 31.36 pi, then what is its radius?

Answer 1

5.6 units

Explanation:

`\boxed{area \: of \: circle = \pi {r}^(2) }`

Given that the area of the circle is 31.36π,

31.36π= πr²

Divide both sides by π:

31.36= r²

r²= 31.36

Square root both sides:

`r = √(31.36)`

r= 5.6 units