Question

A cone has a diameter of 12 in. and a height of 16 in.


What is the volume of the cone?

Use 3.14 as an approximation for pi and express your final answer in hundredths.

Answer 1

V=πr²$\frac{h}{3}$

Radius = 12/2 = 6 in
Height = 16 in

V = 3.14*6²*16/3
V = 602.88 

The volume would be: Volume = 602.88 in^3

Answer 2

The formula for the Volume of a Cone is $\frac{1}{3}$$\pi$r²h
Let us substitute:
V=$\frac{1}{3}$×3.14×6²×16
  =602.88 in³
The radius is half the diameter.(12in=d,r=$\frac{d}{2}$=$\frac{12}{2}$= 6 in)
pi was taken as 3.14