Question

What is the radius of a circle whose area measures 113.1428571429 square centimeters?

Answer 1

`r=6.001207377`

Explanation:

The formula for the area of a circle is `A=pir^2`, where `r` is the length of the radius, and `A` is the area. Looking at the question ,we have the value of the area, and thus put that into the formula,
`113.1428571429=pir^2`

`113.1428571429/pi=r^2`

`sqrt36.01448998=r`

`6.001207377=r`

In the second step we divided both sides by `pi`.
In the third step we took the root of both sides.
The fourth step gave the answer that the radius is equal to `6.001207377` square centimetres.

I hope that helped!