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If the surface area of a sphere is 144π cm², what is the volume of the sphere?

A) 72π cm³
B) 144π cm³
C) 288π cm³
D) 576π cm³

1 Answer

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Final answer:

To find the volume of a sphere with a surface area of 144π cm², first calculate the radius using the surface area formula, then use this radius in the volume formula to get the volume, which is 288π cm³. Option C is the correct answer.

Step-by-step explanation:

If the surface area of a sphere is 144π cm², we can use the area formula to calculate the radius, and then use the radius to find the volume. The surface area of a sphere is given by 4πr². Setting this equal to 144π, we get 4πr² = 144π. To solve for r², we divide both sides by 4π, resulting in r² = 36. Taking the square root of both sides, we find that r = 6 cm.

Now, to find the volume of the sphere, we use the volume formula, which is V = 4/3πr³. Substituting r = 6 cm into this formula, we get V = 4/3π(6³) = 4/3π(216) = 288π cm³. Therefore, the correct option for the volume of the sphere is C) 288π cm³.

User Vinil Prabhu
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