H. E. Dudeney, Amusements in Mathematics (1917) No. 178 · Puzzles · Geometrical puzzles
The Cardboard Box
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?
H. E. Dudeney, Amusements in Mathematics (1917) · No. 178
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