If the height of a cuboid box is reduced by 5cm, it becomes a cuboid box. At this time, the surface area is reduced by 120cm, How many square centimeters of cardboard are used in the original box?

If the height of a cuboid box is reduced by 5cm, it becomes a cuboid box. At this time, the surface area is reduced by 120cm, How many square centimeters of cardboard are used in the original box?

Edge length of new cube: 120 / 5 / 4 = 6
The surface area of the original cuboid is 2 (6 * 9 * 2 + 6 * 6) = 288 square centimeters

The surface area of a cube box is 96 square centimeters, and its volume is ()
A.288 B.64 C.1536

96 / 6 and then square it to 4, and the volume is 4 * 4 * 4 = 64

A square box with a surface area of 54 square centimeters, its volume is () cubic centimeters

27 CC