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Find the surface area of a sphere whose diameter is equal to 24 cm.
Question

Find the surface area of a sphere whose diameter is equal to 24 cm.

A.

839π cm²

B.

841π cm²

C.

1161π cm²

D.

576π cm²

Correct option is D

Given:

Diameter of the sphere = 24 cm

Formula Used:

Radius (r) = Diameter / 2
Surface area = 4πr²

Solution:

The radius of the sphere is:
r = 24 / 2 = 12 cm
The surface area of the sphere is:
Surface Area = 4πr²
Substituting r = 12 cm:
Surface Area = 4π(12)² = 4π × 144 = 576π

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