Question

What is the radius of a circle whose area is 154 square centimeters?

Answer 1

`7.00`

Explanation:

Area of a circle `A=pir^2`, where r is the radius.

Given `A=154`,
`=> 154=pi*r^2`
`=> r^2=154/pi=49.02`

`=> r=sqrt49.02=7.00`