Answer:
Exact volume = (32/3)pi (this is the same as 32pi/3)
Approximate volume = 33.4933 if you use pi = 3.14
The units for the volume are in cubic inches, shortened to "in^3"
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Work Shown:
r = 2 is the radius
h = 8 is the height
V = volume of cone
V = (1/3)*pi*r^2*h
V = (1/3)*pi*2^2*8
V = (1/3)*pi*4*8
V = (1/3)*pi*32
V = (1/3)*32*pi
V = (32/3)pi ....... exact volume
V = (32/3)*3.14
V = 33.4933 ....... approximate volume when you use pi = 3.14
Use more decimal digits of pi to get a better approximation.