The aspect ratio of the cuboid is 3:2:2, and its surface area is 168. In the surface area of the cuboid, several sides are square, and what is the area of the square
The aspect ratio of cuboid is 3:2:2, and its surface area is 168,
168/(3X2X4+2X2X2)
=168/32
=5.25
2X2X5.25=21
A: two of the surface areas of the cuboid are squares, and the area of the square is 21
What is the surface area of a cuboid whose bottom is a cube, whose total edge length is 120 cm and whose height is three times longer than the side length of the bottom
The height is three times longer than the length of the bottom side, that is, the height is four times longer than the bottom side. Let the bottom side be x, 4x + 4x + 16x = 120, x = 5,
The bottom edge is 5cm and the height is 20cm,
Surface area = 5 * 5 * 2 + 20 * 5 * 4 = 450cm2
The ratio of length, width and height of a cuboid is 4:3:2, and the total length of its edges is 108 cm. What is the surface area and volume of the cuboid?
108 △ 4 = 27 (CM), 4 + 3 + 2 = 9, 27 × 49 = 12 (CM), 27 × 39 = 9 (CM), 27 × 29 = 6 (CM), volume: 12 × 9 × 6, = 108 × 6, = 648 (cubic cm); surface area: (12 × 9 + 12 × 6 + 9 × 6) × 2, = (108 + 72 + 54) × 2, = 234 × 2, = 468 (square cm); answer: the volume of this cuboid is 648 cubic cm, surface area is 468 square cm