You have a formula : [tex]V= \pi r^2h[/tex]. You just have to apply it. It would gives :
[tex]V= \pi (2)^2(8)[/tex]
[tex]V=32 \pi [/tex]
[tex]V=100.48cm^3[/tex]
Now, use your mind. How many would be needed to make 2000 cm3.
[tex] \frac{2000}{100.48} [/tex]
[tex]=19.94 = 20[/tex]
Therefore the minimum number of identical containers that Tim would need to make 2,000 cm3 of ice is 20 (option D).
Hope this helps !
Photon
