Question

If someone could help that’d be great

Answer 1

18 inches

Explanation:

`a=\pi r^2`

This is the formula for finding the area of a circle. We already know the area, so we'll move the terms in the equation to better fit our purposes.

`r=\sqrt((a)/(\pi) )`

Now let's substitute.

`r=\sqrt((324\pi)/(\pi) )`

We'll cancel out unnessicary terms:

`r=\sqrt(324)`

This gives us the following:

`r = 18`

In other words, the radius of the circle is 18 inches (NOT square) :D hope this helps :D