A regulation basketball has a diameter of about 9 inches. What is the best approximation of the volume of the ball?

Question

asked Jun 16, 2019 21.1k views

2 Answers

Markus Hedlund · Answer 1 · 2019-06-20T12:40:30+0000

382 in³

The basketball is spherical in shape and it's approximate volume (V) can be calculated using the formula

V =
(4)/(3) πr³ ( where r is the radius )

here the diameter = 9 ⇒ r =
(9)/(2) = 4.5

V =
(4)/(3) π × 4.5³

=
(4)/(3) π × 91.125 = 381.7 ≈ 382 in³