The surface are of a sphere is 7.84 pi ft^2.What I'd the radius of this sphere?
The formula to calculate the surface area of a sphere is given by:
Surface Area = 4πr^2
We are given that the surface area is 7.84π ft^2. Let's substitute this value into the formula:
7.84π = 4πr^2
Divide both sides of the equation by 4π:
7.84π / 4π = r^2
2 = r^2
Take the square root of both sides to find the radius:
r = √2
So, the radius of the sphere is √2 ft.