Find the surface area of a sphere wiht a diameter of 40 inces Leave your ansawer in terms of pi

The surface area of a sphere is calculated using the formula:

Surface Area = 4 * pi * r^2

Given that the diameter of the sphere is 40 inches, the radius (r) would be half of the diameter, so r = 20 inches.

Plugging in the values:

Surface Area = 4 * pi * (20^2)
Surface Area = 4 * pi * 400
Surface Area = 1600 * pi

Therefore, the surface area of a sphere with a diameter of 40 inches is 1600pi square inches.