volume of cylinders and freespace

[dogleg]

A one litre cylinder has a diameter equal to its height. A ball fits exactly into this cylinder. What is the maximum diameter of each ball of a ring of balls that would fit into the free space at the top and bottom of the cylinder? Assume a closed cylinder.

 

[Deleted member 4993]

A one litre cylinder has a diameter equal to its height. A ball fits exactly into this cylinder. What is the maximum diameter of each ball of a ring of balls that would fit into the free space at the top and bottom of the cylinder? Assume a closed cylinder.

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