![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
A cylindrical steel with a bottom diameter of 3cm and a height of 6cm is forged into a conical steel with a bottom diameter of 4cm. How high should the cone be The answer is 3.375. Help! Thank you
What is the base radius of the cylinder
3 △ 2 = 1.5 (CM)
What is the volume of a cylinder
1.5 × 1.5 × 3.14 × 6 = 42.39 (cm3)
What is the base radius of the cone
4 △ 2 = 2 (CM)
What is the base area of the cone
2 × 2 × 3.14 = 12.56 (cm2)
Cone height
42.39 × 3 △ 12.56 = 10.125 (CM)
RELATED INFORMATIONS
- 1. A cuboid steel embryo is 10 cm high, 20 cm wide and 50 cm long, which is cast into a cylindrical steel column with a diameter of 20 cm. How high is the column
- 2. There is a cylindrical steel column with a bottom diameter of 20 cm and a height of 40 cm. If it is forged into other parts, please design a shape The necessary dimensions are pointed out
- 3. A cylindrical steel part with a bottom radius of 3cm and a length of 2cm is cast into a conical part with a bottom area of 31.4cm2. What is the height of the conical part?
- 4. Cast a cylindrical steel part with bottom radius of 3cm and length of 2cm into a conical part with bottom area of 31.4. What is the height of the conical part?
- 5. A cylindrical steel part with a bottom radius of 10 cm and a height of 15 cm is melted and cast into a conical steel part with a height of 60 cm. The bottom area of the cone should be
- 6. A section of cylindrical steel with a bottom diameter of 8 cm and a height of 9 cm. Cast it into a conical part with a height of 12 cm. What is the bottom area of the part? Give me the formula! What is the simplest integer ratio of 91 out of 13?
- 7. The volume of a cylinder is 42.39 cubic meters, the bottom area is 7.065 square meters, how many meters high
- 8. The volume of a cylinder is 94.2 cubic meters. The distance between the two bottoms is 15 meters. How many square meters is the bottom area of the cylinder
- 9. The volume of a cone is 24 cubic meters, the bottom area is 12 square meters, and the height of the cone is 12 square meters______ Rice
- 10. The volume of a cylinder is 480 cubic meters, the bottom area is 24 square meters, and the height is () meters
- 11. In order to forge a conical part with a bottom diameter of 40 cm and a height of 30 cm, how many cm of cylindrical steel with a diameter of 20 cm need to be cut?
- 12. A cylindrical steel with a bottom diameter of 4cm and a height of 10cm is forged into a conical steel with a bottom radius of 4cm, How high can you forge a steel cone with a radius of 4cm
- 13. In order to forge a conical part with a base circumference of 62.8 cm and a height of 12 cm, what size of square steel with a base circumference of 4 DM should be cut as the raw material NO x, y solution!
- 14. To forge a conical part with a base circumference of 62.8 cm and a height of 12 cm, it is necessary to cut how long a square steel with a base circumference of 4 cm is used as raw material
- 15. A cylindrical steel with a bottom circumference of 12.56 cm and a height of 9 cm is forged into a conical steel with a bottom radius of 3, What is the height of the conical steel?
- 16. How long can you cast a 25.12cm, 56cm cylindrical steel with a side length of 5cm into a square cuboid?
- 17. In order to forge a cylindrical part with a circumference of 62.8cm and a height of 15cm, how long is the square steel with a circumference of 4 decimeters?
- 18. The volume of a conical part is 12.56. The radius of the bottom area is 2 cm. What is the height of the part
- 19. There is a conical part made of steel. The circumference of the bottom surface is 12.56 cm and the height is 6 cm. If each cubic centimeter of steel weighs 7.8 g, how much is the weight of the part
- 20. A cone part is 196.56g. The height of the part is 6cm. If the steel weight per cubic centimeter is 7.8G, what is the bottom area of the part