1,205.76 units^3 or 384 π
Here is why:
The formula for the volume of a cone is:
[tex]V=\frac{1}{3}\pi r^2 h[/tex]
We can plug in.
[tex]V=\frac{1}{3}*3.14*8*8*18[/tex]
= 1,205.76 units^3
~
If you are looking for the exact answer, we will leave π.
[tex]V=\frac{1}{3}*\pi*8*8*18[/tex]
= 384 π