Question a-sphe

4.4 Area and Volume - Volume of prisms, cylinders, cones, spheres
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A sphere has a radius of 17 5 feet. What is the volume, in cubic feet, of the sphere?

A.

5 π 17

B.

68 π 15

C.

32 π 5

D.

19,652 π 375

A sphere has a radius of 17 5 feet. What is the volume, in cubic feet,

Hard-difficulty · SAT Math · Area and Volume — Volume of prisms, cylinders, cones, spheres. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

Choice D is correct. The volume, V , of a sphere can be found using the formula V=43πr3, where r is the radius of the sphere. It’s given that the sphere has a radius of 17 5 feet. Substituting 17 5 for r in the formula V=43πr3 yields V=43π1753, which is equivalent to V=43π4,913125, or V=19,652π375. Therefore, the volume, in cubic feet, of the sphere is 19,652π375.

Choice A is incorrect and may result from conceptual or calculation errors.

Choice B is incorrect. This is the volume, in cubic feet, of a sphere with a radius of 1753 feet.

Choice C is incorrect and may result from conceptual or calculation errors.