A circle has an area of 225pift2 find the radius of the circle and find the diameter and circumference of the circle

radius: 15 ft diameter: 30 ft circumference: 30π ft

Step-by-step explanation:

The area is given in terms of the radius as ...

A = πr^2

so we can find the radius as ...

r = √ (A/π)

For your circle, the radius is ...

r = √ (225π ft^2/π) = 15 ft

The diameter is twice the radius, so is ...

d = 2r = 2·15 ft = 30 ft

And the circumference is π times the diameter:

C = πd = π·30 ft = 30π ft