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The surface area of a cube is 24 square decimeters. Divide it into two identical cuboids. The surface area of each cuboid is______ Square decimeter
The area of a surface of a cube is: 24 △ 6 = 4 (square decimeter), so the surface area of each cuboid is: 24 △ 2 + 4 = 16 (square decimeter), so the answer is: 16
The surface area of a cuboid made of three identical cubes is reduced by 24 square centimeters. How many square centimeters is the surface area of this cuboid?
The speed is very fast
Each face = 24 ÷ 4 = 6 cm 2
Cuboid surface area = 6 × (3 × 6-4) = 84 square centimeters
Put three cubes of the same size into a cuboid. The surface area of the cuboid is 224 square centimeters. What is the surface area of this cuboid?
The surface area of a cuboid is the surface area of three cubes and minus four connected 1 / 6 cubes
3 × cube area - 4 × (1 / 6 cube area) = 224 square centimeters
Cube surface area = 224 △ 3 - 2 / 3 = 224 △ 7 / 3 = 96
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