Question

Find the surface area of a sphere with a diameter of 30 inches. Leav your answer in terms of pi. (1 point)
2,826 in.2
Ο 225 in.2
Ο 900 in.2
Ο 3,600 in.2

Answer 1

The surface area of a sphere is given by the formula A = 4πr^2, where r is the radius of the sphere. In this case, the diameter is given, so we need to divide it by 2 to get the radius.

Radius = Diameter/2 = 30/2 = 15 inches

Now we can substitute the value of the radius into the formula:

A = 4π(15^2)
A = 4π(225)
A = 900π

Therefore, the surface area of the sphere is 900π in.2.