The area of a circle is 36pi cm^2, what is the radius of the circle

So, to find the area of the circle you use the equation pi r^2, so we need to do this in reverse to find the radius, r.
So we can set up this equation:
36pi = pi r^2
So if we divide by pi on both sides we get
36 = r^2
Then we square root both sides:
6 = r
So the radius is 6cm

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