With a 52cm long wire, it can be welded into a 6cm long, 4cm wide and () cm high rectangular teaching aid

52/4-6-4=3cm

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1. With a 52 cm long lead wire, a 6 cm, 4 cm wide and () cm high rectangular teaching aid can be welded A. 2B. 3C. 4D. 5
2. A wooden box without cover. The thickness of the board is known to be 1 cm. Find the volume and volume of the wooden box. The width is 5.2 decimeters, the length is 1 decimeter, and the length is 8.7 decimeters Why?
3. To make a rectangular wooden box [with cover] that is 8 decimeters long, 6 decimeters wide and 5 decimeters high, how many square decimeters of wood board does it need at least to make a wooden box
4. How many square meters of planks does it need to make a rectangular wooden box that is 4 decimeters long, 6 decimeters wide and 5 decimeters high? How many cubic meters of space does this wooden box occupy?
5. To make a cuboid wooden box without a cover, its length and width are 8 decimeters. How many square meters of wood do you need?
6. A cuboid iron cabinet is 0.8m in length, 0.5m in width and 0.4m in height. How many square meters of iron plate should be used at least to make this iron cabinet? What's the volume of this iron cabinet?
7. The bottom area of a cone-shaped sand beach is 3 m and H is 2 M. how high can this pile of sand be laid in a rectangular sand pit with an average length of 4 m and a width of 3 m?
8. The trunk of a freight car is a cuboid, which is 4 meters long, 1.5 meters wide and 4 meters high. It is filled with a load of sand. After unloading, the sand pile bears a cone with a height of 1.5 meters to calculate the bottom area
9. A freight car is a cuboid, its length is 4m, width is 1.5m, height is 4m, full of a car of sand, after unloading the sand piled into a 5 decimeter high cone How many square meters is the bottom area of the conical sand pile
10. In a 40 cm long and 20 cm wide cuboid water tank, a cuboid iron block is placed, and the water surface rises by 2 cm It is known that the length and width of the iron block are both 10 cm, and the height of the iron block is how many cm
11. With a 52 cm long lead wire, a 6 cm, 4 cm wide and () cm high rectangular teaching aid can be welded A. 2B. 3C. 4D. 5
12. There is a 52cm long wire, which can be welded into a 6cm long and 4cm wide cuboid. What is the surface area of the cuboid?
13. With a 72cm long iron wire, it can be welded into a rectangular teaching aid with a length of 8cm, a width of () cm and a height of 4cm
14. A 92 cm long wire can be welded into a 10 cm long, 8 cm wide and () cm high rectangular teaching aid A.80 B.5 C.5.5
15. With a 56 cm long wire just welded into a 6 cm long, 5 cm wide, several cm high cuboid
16. Make a cuboid frame with 96cm iron wire. The ratio of length to width is 3:2:1. What's the volume of the cuboid?
17. Make a cuboid frame with 120cm iron wire. The ratio of length to width to height is 3:2:1. What are the length, width and height of the cuboid? What are the surface area and volume To write a detailed sub title!
18. Make a rectangular frame with 120cm iron wire, the ratio of length, width and height is 3; 2; 1. How many centimeters is the length, width and height of the cuboid? 2. Plant tomatoes, cucumbers and eggplants in a geographical area of 30m in length and 12m in width, of which 5% of the area is planted with tomatoes, and the rest is planted with cucumbers and eggplants according to the ratio of 3:2?
19. Use 120 cm iron wire to make a cuboid frame. The ratio of length to width to height is 3:2:1, and the length to width to height is 3:2:1 How much is it? Come on, come on, come on, come on, come on, come on, come on, come on
20. How long does it take to make a 10 cm long, 5 cm wide and 3 cm high rectangular frame with iron wire?