Find the surface area of a sphere with a diameter of 8 inches leave your answer in terms of pi a) 32π sq. inches b) 64π sq. inches c) 16π sq. inches d) 128π sq. inches

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asked Mar 12, 2024 653 views

1 Answer

Max Worg · Answer 1 · 2024-03-16T04:24:06+0000

The surface area of the sphere with a diameter of 8 inches is b) 64π square inches.

To find the surface area of a sphere, we use the formula A = 4πr², where r is the radius of the sphere.

In this case, the diameter of the sphere is given as 8 inches, so the radius is half the diameter which is 4 inches.

Substituting the value of r = 4 inches into the formula, we get:

A = 4π(4 inches)² = 4π(16 square inches) = 64π square inches

Therefore, the surface area of the sphere is 64π square inches, so the correct answer is b) 64π sq. inches.