Because the two opposite faces are equal in area, count the back two faces first, then the front and back, and finally the left and right faces. Let the length, width and height of a cuboid be A, B and C respectively, then its surface area is S cuboid =(ab+bc+ca)*2, which is also equal to 2AB+2BC+2Ca; Formula: the surface area of a cuboid = length× width× 2+width× height× 2+length× height× 2, or: the surface area of a cuboid = (length× width+width× height+length× height )× 2 full text.

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Surface area of cuboid = (length× width+length× height+width× height) ×2.

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The surface area of a cuboid is (length× width+length× height+width× height) × 2, and the surface area of a cube is side length× side length× 6.

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Cuboid = (length x width+length x height+width x height) x2 Cube = side length x side length x6

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(length× width+length× height+height× width) x2

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(length+width) x2

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s=(ab+bc+ac)

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(length x width) ×2+ Not later?

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