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The volume of a 282.6 cubic centimeter iron block is fused into a 9cm high cone-shaped machine part. How much is the bottom area of the cone-shaped part? A cylinder with a radius of 4cm and a height of 10cm is remelted into a cone with a radius of 2cm. What is its height? Answer in 20 minutes
The volume of a 282.6 cubic centimeter iron block is fused into a 9cm high conical machine parts, how much is the bottom area of the conical parts? 282.6 × 3 △ 9 = 847.8 △ 9 = 94.2 (square centimeter) a cylinder with a bottom radius of 4cm and a height of 10cm is remelted into a cone with a bottom radius of 2cm
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- 1. Cast a 282.6 cubic centimeter iron block into a conical machine part with a bottom radius of 6cm, and calculate the height of the conical part? (π = 3.14)
- 2. Cast a 282.6 cubic centimeter iron block into a conical machine part with a bottom radius of 6cm, and calculate the height of the conical part? (π = 3.14)
- 3. Cast a 282.6 cubic centimeter iron block into a conical machine part with a bottom radius of 6cm, and calculate the height of the conical part? (π = 3.14)
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- 5. A conical part, the bottom area is 12 square centimeters, 4.5 centimeters high, the volume of this part is () cubic centimeters
- 6. The height of a conical part is 15 cm and the bottom area is 16 square cm. What is its volume in cubic cm?
- 7. Cast a 282.6 cubic centimeter iron block into a conical machine part with a bottom radius of 6cm, and calculate the height of the conical part? (π = 3.14)
- 8. Cast a 282.6 cubic centimeter iron block into a conical machine part with a bottom radius of 6cm, and calculate the height of the conical part? (π = 3.14)
- 9. Cast a 282.6 cubic centimeter iron block into a conical machine part with a bottom radius of 6cm, and calculate the height of the conical part? (π = 3.14)
- 10. There is a cylinder machine part with a height of 6.28 cm, and its side is just a square. Find the surface area of the part
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- 14. A cylindrical part with a bottom radius of 4 decimeters and a height of 6 decimeters is fused into a conical part with a bottom diameter of 4 decimeters. How many decimeters is the height of the conical part?
- 15. A cylindrical part with a bottom radius of 4 decimeters and a height of 6 decimeters is melted into a conical part with a bottom diameter of 12 decimeters, and the height of the cone is calculated
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