Answer: Choice B)
[tex]804.2 \text{ km}^3[/tex]
This value is approximate.
======================================================
Work Shown:
[tex]V = \pi*r^2*h\\\\V = \pi*8^2*4\\\\V = 256\pi\\\\V \approx 804.248 \text{ km}^3\\\\V \approx 804.2 \text{ km}^3\\\\[/tex]
I used the calculator's stored version of pi to get the most accuracy possible.
