Optimization problem

Question

You need to find the volume capacity of a box containing 20 cans using minimal packaging. What would be the dimensions of this box if the radius of each can is 3.74cm?

Answer 1

The cans are to be arranged 4 rows of 5.

d=3.74*2=7.48

* 4

=29.92

7.48

*5

=37.4

30*37.5

Answer 2

Hello. I am attempting to make sense of this problem. I may be wrong, but is there any other piece of information that was provided?