You can put this solution on YOUR website! how many gallons of water in a container that measures 6 feet by 26 inches by 26 inches?
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Assuming it's a 26 inch square:
V = 6 ft x 12in/ft x 26 in x 26 in
V = 72*26*26 cu inches
V = 48,672 cu inches
A gallon is 231 cu inches
V = 48672/231 cu in
V = 210.7 gallons