Question

A sphere has a diameter of 24 ft. What is its surface area?

Answer 1

Explanation:

Use the diameter to find the radius, which is diameter times 0.5. The radius is 12.

Now, the SA equation for a sphere is 4 times pi times radius squared.

12 squared is 144, so 4 * 144 * pi

Here are either answer:

- Without finding the decimal form of pi, 576pi feet squared

- Using the decimal form of pi, it's approximately 1809.56 feet squared

Answer 2

Answer: 1,809.56 ft.²

Explanation:

This formula relates the diameter of a sphere to its surface area:

A = πd²

We will input the value given and solve:

A = πd²

A = π(24)²

A ≈ 1,809.56 ft.²