Question

What is the volume of a ball if its diameter is 6 inches? Leave your answer in terms of π.

Answer 1

Volume of a sphere/ball = 4/3 * pi * (d/2)^3
                                       =4/3 * pi * 3^3
                                       =36 pi cu.in.

Answer 2

Vsphere=(4/3)pir^3

d/2=r
d=6,
6/2=3=r


Vsphere=(4/3)pi(3^3)
Vsphere=(4/3)pi(27)
Vsphere=36pi cubic inches