Question

What’s the volume of this cone?

Answer 1

Volume of a cone = 1/3 π r² h = 1/3 π (11)² (84) = 3388π units³

Answer: 3388π units³

Answer 2

The volume of a cone is the interesting

`V = (\pi r^2 h)/(3)`

which is one third the cylinder of the same height and radius.

We have r=11 and h=84=3(28) so

`V = (\pi 11^2 (84))/(3) = 121(28)\pi = 3388 \pi \textrm { cubic units}`

Choice B