Find the surface area of a sphere with a diameter of 30 inches. Leave your answer in terms of pi

Answer 1

The formula to calculate surface area of a sphere is:

Surface area = 4πr^2

Given that the diameter of the sphere is 30 inches, the radius can be calculated by dividing the diameter by 2:

Radius = 30 inches / 2 = 15 inches

Substituting the radius into the formula:

Surface area = 4π(15 inches)^2
Surface area = 4π(225 inches^2)
Surface area = 900π square inches

Hence, the surface area of the sphere with a diameter of 30 inches is 900π square inches.