Traditional Culture Encyclopedia - Traditional culture - If the surface of a food packaging box is unfolded, first fold the data from experience, and then calculate the surface area unit cm of the packaging box according to the size in the box.
If the surface of a food packaging box is unfolded, first fold the data from experience, and then calculate the surface area unit cm of the packaging box according to the size in the box.
Length: 70 cm; Width: 60 cm; Height: 40cm
Formula of cuboid surface area:
(L * W+W * H+L * H) *2
Namely: (70 * 60+60 * 40+70 * 40) * 2 =18800 (square centimeter)
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