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Volume is 1 cubic meter cuboid wooden box, his floor area must be 1 square meter
incorrect
This has something to do with Gao
Only if the height is one meter, otherwise it is not
The carriage is 20m long, 3M wide and 5m wide from the inside. The average weight of goods per cubic meter is 2 tons. How many trains are needed if a 15 ton train is used
Be clear about the symbols
20*3*2.5*2/15
20 vehicles
1. A freight car with a length of 12m and a width of 2.5m is measured from the inside. Two such cars filled with sand are transported from the railway station by cars carrying 8 cubic meters of sand,
How many cars can transport the sand?
2. A cuboid block is cut into two cubes. At this time, the surface area is increased by 8 square centimeters. The surface area of the original cuboid is () square centimeters, and the volume is () cubic centimeters
3. There are 196 pages in a literary book. Li Ming read 22 pages in the first three days and finished the rest five days. How many pages do he read every day?
4. A cube block. After sawing it into two identical cuboids, the surface area of each cuboid is 32 square centimeters smaller than that of the original cuboid. How much is the surface area and volume of the original cuboid?
1.2 × (12 × 2.5 × 3) △ 8 = 22.5 ≈ 23 vehicles
A: we need 23
Surface area: 40
Volume: 16
3. (196-3 × 22) △ 5 = 26 pages
A: an average of 26 pages a day
4.32÷4＝8㎝²
Surface area: 8 × 2 × 6 = 96 cm and 178 cm;
Volume: 2 × 8 × 4 = 64 cm and 179 cm;
A cuboid pool is 50m long, 20m wide, 3M deep. The water level in the pool is 2m high. How many tons can the pool hold
How many meters does it take to walk around the pool?
If the pool around and the bottom of the tile shop, shop tile area how big?
50 × 20 × 3 × 1 = 3000 tons
The tank can hold 3000 tons
2 × (50 + 20) = 140m
Walk around the pool for at least 140 meters
50 × 20 + (50 × 3 + 20 × 3) × 2 = 1420m and 178;
The area of ceramic tile is 1420 meters;
The length, width and height of a rectangular tank are 50m, 20m and 3M respectively. If the water depth in the tank is 1.5m, how many cubic meters of water is there in the tank?
1. Whether to calculate volume or surface area? If we encounter this problem in the future, how to judge whether to calculate volume or surface area?
2. Is the water depth wide or high?
This is for volume. You can see from the unit that the unit of volume is cubic and the unit of surface area is square
Water depth is the height of water
How many cubic meters of water is there in a square shaped pool with the edge length of 3.5m and the known water depth of 3M
It's 3.5 × 3.5 × 3 = 36.75 cubic meters
A rectangular tank with an inner wall of 9 decimeters long and 7 decimeters wide can store 600 liters of water, put in a piece of ice, and the water surface rises 5 cm. How big is the ice?
fast
5 cm = 0.5 decimeter
Because the volume of water rising by 5 cm is the volume of ice,
So the volume of ice is 9 × 7 × 0.5 = 31.5
Immerse a stone completely in a cuboid pool 3 meters long and 2 meters wide. The water surface rises from 1.3 meters to 1.5 meters. What is the volume of the stone in cubic meters
Immerse a stone completely in a cuboid pool 3 meters long and 2 meters wide. The water surface rises from 1.3 meters to 1.5 meters. The volume of the stone is (1.2) cubic meters
The bottom area of the pool is: 3 × 2 = 6 square meters
The volume of stone is: 6 × (1.5-1.3) = 6 × 0.2 = 1.2m3
If you don't understand, please ask
Measuring in a cuboid tank, the length is 3 meters, the width is 1.5 meters, and the water depth is 1.2 meters. After putting in two small balls, the water surface rises by 0.2 meters. What is the volume of each small ball
3*1.5*0.2/2=0.45
A cuboid pool is 3 meters long and 2 meters wide. The depth of water in the pool is 7 decimeters. When a steel plate with a volume of 2.4 cubic meters is completely immersed in the water, how many decimeters does the water surface rise?
2.4 (3 × 2) = 2.4 (6) = 0.4 (m) a: the water surface rises by 0.4 M
RELATED INFORMATIONS
- 1. A rectangular wooden box with a bottom area of 3.6 square meters and a height of 1.8 meters. If each cubic meter can hold 5.2 kilograms of wood, then the rectangular wooden box can hold wood What's the first kilogram?
- 2. Dig a 6 m long, 5 m wide and 2 m deep rectangular pool, which covers an area of ① 30 square meters ② 10 square meters ③ 12 square meters
- 3. What's the floor area of a cuboid tank 6m long, 5.5m wide and 2m high?
- 4. A cuboid wooden box is 4cm in length, 3cm in width and 2cm in height. How many square decimeters is the largest and how many square decimeters is the smallest
- 5. A rectangular wooden box is nine tenths of a meter long, two-thirds of a meter wide and one-third of a meter high. How to place this wooden box? What is the minimum floor area?
- 6. Connect four 7-decimeter bamboo poles, the overlapping part of each two is 10 cm long. How long is the bamboo pole after connecting?
- 7. Connect two 27 decimeter long bamboo poles to form a long bamboo pole. If the part tied together is 1 decimeter, the connected bamboo pole will be broken
- 8. A triangle and its parallelogram with the same base and height just form a trapezoid with an area of 60 square centimeters. The area of this triangle is______ Square centimeter. What's the area of a parallelogram______ Square centimeter
- 9. The area of a triangle is 60 square centimeters less than that of a parallelogram of equal height and equal ground. What is the area of this triangle?
- 10. The area of a triangle is 16 square centimeters. Its height is increased by three times, and its bottom remains unchanged. Its area becomes () square centimeters
- 11. There are large, medium and small cuboid pools. From the inside, the length is 4 m.3 m, the width is 3 m, the height is 2 m, the height is 1 m, and the height is 0.5 m. put two stones into the small and medium-sized pools. Their water surface rises by 4 cm.11 cm respectively. If these two stones are put into the large pool, how much does the water surface rise
- 12. The side length of a cube is the second millimeter of 10. If the side length of a square is ten times of the original, the volume of the cube is () cubic millimeter
- 13. A cuboid wood is 2.5 meters long and its cross section is a square with a side length of 2 decimeters. How many cubic meters is the volume of this wood? A cuboid tin tank The edge length is 6.5 decimeters. How many liters of oil can this oil tank hold? How many sheets of iron do you need
- 14. A cuboid wood, its cross section is a cube with side length of 4 decimeters, wood length of 3 meters, how many cubic meters is its volume
- 15. The side length of a cube is 1 meter. How many cubic meters is its volume? How many cubic meters can you divide it into
- 16. It is known that the side length of a small cube is 0.01 meters. This small cube is placed into a large cube with a volume of 10 cubic meters, and several small cubes are needed
- 17. Trapezoidal volume calculation formula
- 18. If the edge length of a cube increases four times, its surface area will increase______ Double, volume expansion______ Times
- 19. How many times of its surface area and volume?
- 20. How many times is the length, surface area and volume of a cube?