178.--THE CARDBOARD BOX.

From Amusements in Mathematics by Henry Ernest Dudeney.

This puzzle is not difficult, but it will be found entertaining to discover the simple rule for its solution. I have a rectangular cardboard box. The top has an area of 120 square inches, the side 96 square inches, and the end 80 square inches. What are the exact dimensions of the box?

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178.--THE CARDBOARD BOX.: Amusements in Mathematics by Henry Ernest Dudeney | amphi