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How to calculate the cube of wood? How many cubes does a ruler have with a diameter of 20cm and a length of 4.5m?
For example, the diameter of 20 cm is 3.14 × 0.1 × 0.1 × 4.5
For example, the radius of 20cm is 3.14 × 0.2 × 0.2 × 4.5
The length of wood is 2.4 meters, the width is 20 cm, and the thickness is 3 cm. How to calculate its cube?
20cm = 0.2m 3cm = 0.03m
2.4 × 0.2 × 0.03 = 0.0144 (M3)
How to calculate the cube? Six centimeters in length, six centimeters in width, four and a half centimeters in height. How many cubes are there in 2000?
How many cubic meters?
Length * width * height is a cube
6 * 6 * 4.5 * 2000 = 324000 cm3 = 0.324 M3
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- 1. How many square meters is a piece of wood 3 cm in diameter and 1 meter in length
- 2. A cylindrical wood, side area is 320 square centimeters, its diameter is 20 centimeters, the volume of this cylindrical wood is how many cubic centimeters
- 3. There is a round timber, 150 cm long and 12 cm in diameter. If it is sawn into two sections according to the ratio of 2:3, what is the volume of the shorter section? emergency
- 4. If a cylindrical timber with a volume of 120 cubic centimeters is cut into the largest cone, the volume of the cut part is______ Cubic centimeter
- 5. Cut a cylindrical wood into the largest cone. The volume of the cut part is 4 cubic centimeters, which is the volume of the original wood
- 6. A piece of wood is 2.5 meters long and its cross section is a square with a side length of 10 cm. What is the volume of 40 pieces of wood? How many cubic decimeters? How many cubic meters?
- 7. A piece of wood is 2 meters long, and its cross section is a square with a side length of 0.4 meters. How many cubic meters is the volume of this piece of wood? How many cubic decimeters is it Please hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry, hurry
- 8. A cuboid wood, 2 meters long, cut it into 3 sections, the surface area increases by 24 square decimeters, how many cubic decimeters is the volume of this wood?
- 9. There is a cuboid wood with a cross-sectional area of 25 square decimeters and a length of 2 meters. How many cubic meters is this wood?
- 10. The cross-sectional area of a cuboid wood is 5.2 square decimeters, and the length is 12 meters. How many cubic meters is the volume of this wood? Please be quick, thank you!
- 11. A 2-meter-long cylindrical timber with a cross-section radius of 10 cm is sawed vertically along the diameter of the cross-section and divided into two equal blocks. What is the volume and surface area of each block?
- 12. There is a cylindrical wood with a bottom diameter of 10 cm and a height of 20 cm. It is cut into two sections along its diameter. What is the surface area of each piece?
- 13. How many cubic meters is 3.8 meters in diameter and one meter in height
- 14. How many cm2 is the surface area increased by sawing a 2 cm long cylindrical wood with a bottom radius of 10 cm into six identical cylindrical pieces?
- 15. Split a 20 decimeter long cylindrical wood along the bottom diameter, and increase the surface area by 80 square decimeters. What is the original surface area of this cylindrical wood? (π = 3)
- 16. Split a 20 decimeter long cylindrical wood along the bottom diameter, and increase the surface area by 80 square decimeters. What is the original surface area of this cylindrical wood? (π = 3)
- 17. How many cubic centimeters is the volume of the largest cylinder made of cubic wood with 10 cm edge length
- 18. A section of cuboid wood is 1.2 meters long. If you want to cut it short by 2 cm, its volume will be reduced by 40 cubic cm
- 19. A cuboid wood is 1.2m long. If it is sawed off 2cm, its volume will be reduced by 40 cubic centimeters. How much cubic centimeters is that of the original wood? My mother bought a turtle and put it in a rectangular glass fish tank of 5DM in length and 4dm in width. After the turtle sank into the water, it was observed that the water surface rose by 1dm. Do you know the volume of the turtle?
- 20. A section of cuboid wood is 1 meter long. If it is sawed off for 2 cm, its volume will be reduced by 20 cubic cm. What is the original volume of this section of wood? (detailed thinking)