The surface area of a sphere is 7.84π ft^2. What is the radius of this sphere
The formula for the surface area of a sphere is:
Surface Area = 4πr^2
We know that the surface area is 7.84π ft^2. Plugging this value into the formula, we get:
7.84π = 4πr^2
Dividing both sides by 4π, we get:
r^2 = 7.84/4
r^2 = 1.96
Taking the square root of both sides, we get:
r = √1.96
r ≈ 1.4 ft
Therefore, the radius of the sphere is approximately 1.4 ft.