Since the basketball-shaped sphere, then
Its volume = The volume of the sphere
The volume of the sphere is
r is the radius of it
Since the radius of the basketball is 4.5 inches, then
• r = 3.5
Substitute in the rule above
The volume of the basketball is 121.5 pi in^3
We can use pi = 3.14 or 22/7
The volume of the basketball is 381.8571429 in^3