Use a steel block with a volume of 2000 cubic centimeters to forge a rectangular square steel with a cross section of 20 square centimeters. How many centimeters is the square steel long?

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• 1. A square steel with an edge length of 8 cm is forged into a cuboid steel with a cross-sectional area of 4 square cm. How long is the cuboid steel
• 2. The volume of a cone is 84 cubic centimeters, the bottom area is 21 square centimeters, and the height is 10______ Cm
• 3. The height of the cylinder increases by 3 cm, and the surface area increases by 18.84 square cm. If the original height of the cylinder is 10 cm, what is the original volume of the cylinder? (the problem should be solved in detail)
• 4. The side area of a cylinder is 18.84 square centimeters, the height is 10 centimeters, and its volume is () cubic centimeters
• 5. The side area of a cylinder is 942cm2, its volume is 2355cm3, and its bottom area is______  cm2．
• 6. The side area of a cylinder is 314 square centimeters, the volume is 942 cubic centimeters, and its bottom area is___ Square centimeter
• 7. The side area of a cylinder is 18.84 square centimeters, the height is 10 centimeters, the bottom area is (), and the volume is ()
• 8. The volume of a cuboid is 250 cubic centimeters and its height is 5cm. How many square centimeters is its bottom area
• 9. The height of a cuboid is reduced by 3 cm to become a cube, and the surface area is reduced by 84 square centimeters. The volume of the cube is several cubic centimeters
• 10. If the height of a cuboid is increased by 3 cm, it will become a cube, and the surface area will be increased by 84 square cm. What is the volume of the original cuboid
• 11. A steel block with a volume of 2000 cubic decimeters is forged into a rectangular square steel with a cross-sectional area of 20 square decimeters. How long is this rectangular square steel (1) A steel block with a volume of 2000 cubic decimeters is forged into a rectangular square steel with a cross-sectional area of 20 square decimeters. How long is the rectangular square steel? (2) A 12 decimeter long, 10 decimeter wide rectangular sheet iron, in his four corners each cut a side length of 2 decimeter small square, welded into an open sheet iron water tank. The tank's volume is about how many liters? Sheet iron thickness is ignored (3) A cube iron block is put into a cuboid water tank with a length of 25 cm, a width of 12 cm and a height of 20 cm, and then water is added into the glass jar, so that the iron block is completely immersed in the water. When the iron block is taken out of the water, how many cm will the water in the FRP drop? Please answer any question you think of, The edge length of cube iron is 9 cm
• 12. A cuboid with a surface area of 360 square centimeters can be cut into two identical cubes. How many cubic centimeters is the volume of each small cube?
• 13. Cut a cube with a volume of 64 cubic centimeters from a cuboid with a square bottom and a height of 6 cm. What is the original surface area of the cuboid?
• 14. 1. Cut a cube with a volume of 64 cubic centimeter from a cuboid with a length of 6 cm. The original surface area of this cuboid is () square centimeter Divide a number by 10 and 54, and the quotient is exactly an integer. The maximum of this number is () 3. A minimalist fraction, if the numerator plus one equals two fifths, if the numerator minus one equals one fifths, the minimalist fraction turns out to be () 4. Four fifths of the mass of a steel is equal to a fraction of the mass of the same steel () 5. The sum of five continuous natural numbers is 200, and the largest one is ()
• 15. Cut a cube with a volume of 64 cubic centimeters from a 6 cm long cuboid. How many square centimeters is the original surface area of the cuboid
• 16. A cuboid paper box, its bottom is a square with side length of 5 decimeters, its side area is 120 square decimeters
• 17. A cuboid carton covers an area of 2.4 square decimeters and its height is 6 decimeters. Its volume is
• 18. A cuboid wood block, cut from the top of the cuboid 5 cm high, the rest is a cube, the surface area reduced by 120 square centimeters______ Cubic centimeter
• 19. The volume of a cone part is 120 cubic centimeters, and its bottom area is 24 square centimeters. What is the height of this part?
• 20. A cuboid has a volume of 120 cubic centimeters and a height of 5 centimeters. What's the area of the bottom of the cuboid I'm in a hurry. I'll have it tonight