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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

User Iberck
by
8.4k points

1 Answer

4 votes

Final answer:

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

Step-by-step explanation:

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.

User Max Worg
by
8.0k points
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