The diameter of a sphere is 2 ft. What is the sphere's volume? Round to the nearest tenth.

Responses
A 4.2
4.2 ft 3
B 8.1
8.1 ft 3
C 16.8
16.8 ft 3
D 33.5

1 answer

The volume of a sphere can be calculated using the formula V = (4/3) * π * r^3, where r is the radius of the sphere.

Since the diameter is 2 ft, the radius would be half of this, which is 1 ft.

Plugging this into the formula, we get V = (4/3) * π * 1^3 = (4/3) * π * 1 = 4.18879...

Rounding to the nearest tenth, the volume of the sphere is 4.2 ft^3.

Therefore, the correct response is A. 4.2 ft^3.