The area of the bottom of the cylinder equals (), and the height equals (), so the volume of the cylinder equals () No. 1 in Mathematics Grade 6 Volume 2 Beijing Normal University Edition page 5

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• 1. There are two cylinders with the same bottom area. The ratio of height is 2:3. The volume of the first cylinder is 20 cubic meters. What is the volume of the second cylinder?
• 2. The volume of a cylinder is 84.7 cubic centimeter, and its side area is equal to the sum of the two bottom areas. Find the surface area of the cylinder
• 3. The surface area of the cylinder is 314, the side area of the cylinder is just equal to the sum of the areas of the two bottom circles, and the volume of the cylinder is [] cm3
• 4. After a cylinder with a height of one decimeter is cut into two equal half cylinders, the surface area increases by 60 square centimeters. What is the volume of this cylinder in cubic centimeters?
• 5. After a 2-meter-long steel cylinder is cut into three sections, the surface area is increased by 16 square decimeters, and the volume of the steel is calculated How to answer the formula
• 6. The surface area of a 1-meter-long steel cylinder will be reduced by 25.12 square decimeters after a 2-decimeter section is cut off. The volume of this steel cylinder is______ Cubic decimeter
• 7. The surface area of a 1-meter-long steel cylinder will be reduced by 25.12 square decimeters after a 2-decimeter section is cut off. The volume of this steel cylinder is______ Cubic decimeter
• 8. The surface area of a one meter long steel cylinder will be reduced by 25.12 square decimeters after cutting off a section of two decimeters What's the volume of this steel tube?
• 9. After two 2-meter-long cylinders with the same bottom area are assembled into a cylinder steel, the surface area is reduced by 0.6 square decimeter. If each cubic decimeter of steel weighs 7.8 kg, how many kg does the assembled steel weigh?
• 10. The surface area of a 1-meter-long steel cylinder will be reduced by 25.12 square decimeters after a 2-decimeter section is cut off. The volume of this steel cylinder is______ Cubic decimeter
• 11. The volume of a cylinder is 250 cubic centimeters, the side area is 100! Find the radius
• 12. A cylinder with a circumference of 25.12 decimeters is cut vertically along the diameter of the bottom surface, and the surface area is increased by 32 square decimeters to calculate the volume of the cylinder There should be a formula
• 13. Two identical cylinders are put together to form a large cylinder 10 cm long. The surface area is reduced by 25.12 square centimeters. The original volume of a cylinder is () cubic centimeters A. 31.4B. 62.8C. 94.2
• 14. Cut a cylinder into two halves. The front of the cylinder is a square. The volume of each half cylinder is known to be 25.12 cubic centimeters. How many square centimeters is the surface area of each half cylinder? Please don't use some special symbols. I can't understand them
• 15. Cut a cylinder into two half cylinders with a square section. The volume of each half cylinder is known to be 25.12 cubic centimeter. Calculate the surface area of the half cylinder
• 16. The height of a cylinder is increased by 4cm, the surface area is increased by 50.24cm2, and the bottom area of the cylinder is calculated
• 17. If the height of a cylinder increases by 1cm, its surface area will increase by 50.24 square centimeters. What is the bottom area of the cylinder?
• 18. If the height of a cylinder is reduced by one centimeter, its side area will be reduced by 6.28 square centimeter
• 19. If the height of a cylinder with the same circumference as the height of its bottom surface is shortened by 1 cm, its surface will be reduced by 6.28 square cm, and the volume of the cylinder will be calculated
• 20. If the height of a cylinder is increased by 3 cm, the height of the cylinder is equal to the circumference of the bottom surface, and the area is increased by 94.2 square cm. The volume of the original cylinder is calculated