Cut a cuboid of 7cm in length, 6cm in width and 5cm in height into two cuboids so that the two cuboids have the largest surface area. What is the sum of the surface products of the two cuboids

2×（7×6×2+6×5+5×7）=298

When a cuboid with a length of 6cm, a width of 5cm and a height of 4cm is cut into two cuboids, the sum of the surface areas of the two cuboids is the largest______ ．

According to the cuboid area formula, (6 × 5 + 6 × 2 + 5 × 2) × 2 × 2 = 208 square cm, so the answer is: 208 square cm

There are two cube cartons. It is known that the edge length of a small cube carton is 5cm. If the volume of a large cube carton is 91cm larger than that of a small cube carton, what is the edge length of a large cube carton

Large square volume = 5 × 5 × 5 + 91 = 216 CC
Edge length of large square = &#³; √ 216 = 6cm

RELATED INFORMATIONS

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