Question

If someone could help that’d be great

Answer 1

Answer:

18 inches

Step-by-step 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.

$r=\sqrt(\frac{a}{\pi} )$

Now let's substitute.

$r=\sqrt(\frac{324\pi}{\pi} )$

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