Ann in Houston wrote:

A five gallon water jug is much bigger than one
square foot.

You mean, "cubic" foot. And it isn't. I just did a rough calculation
(using a sheet of 8.5"x11" paper to measure a 5gal jug because i didn't
have a ruler or tape measure).

The jug is 10" in diameter and 14" tall. The volume of a cube is
Length*height*width=1728 cubic inches for a 1' cube. The volume of a
cylinder is Pi*Radius*Radius*height= Pi*5*5*14=1100 cubic inches. Not
surprisingly; smaller than a 12" cube. :-)
--
derek