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You are watching: The diameter of a basketball is approximately 9.5 inches

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The diameter of a basketround is roughly 9.5 inches and also the diameter of a tennis ball is approximately 2.5 inches. The volume of the basketsphere is about exactly how many times greater than the volume of the tennis ball?

1) 3591

2) 65

3) 55

4) 4

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volume of basketround = 4/3 πr3

wbelow r is the radius.

radius = diameter / 2

because diameter = 9.5,

radius = 9.5/2 = 4.75

Therefore, volume of basketball = 4/3 x π x 4.753

= 448.92

volume of tennis ball = 4/3 πr3

wright here r is the radius.

radius = diameter / 2

considering that diameter = 2.5,

radius = 9.5/2 = 1.25

Thus, volume of tennis round = 4/3 x π x 1.253

= 8.18

As such, the volume of the basketsphere is 448.92/8.18 times greater than the volume of the tennis ball

448.92/8.18 = 55

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