Find the surface area of a sphere with a diameter of 40 inches. Leave your answer in terms of pi. (1 point)
The surface area is
in.2
The formula for the surface area of a sphere is given by 4πr^2, where r is the radius of the sphere.
In this case, the diameter of the sphere is 40 inches, so the radius is half of the diameter, which is 40/2 = 20 inches.
Plugging this value into the formula, we get:
Surface area = 4π(20)^2 = 4π(400) = 1600π
Therefore, the surface area is 1600π square inches.