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A cylinder bottom diameter 3 decimeters, its volume and surface area Add another question, the circumference of the bottom of a cylinder is 31.4cm, the area is 408.2cm, and find the height of the cylinder
Surface area; radius: 1.5 decimeters, side area: 3.14% 3.5 = 47.1, bottom area: 2% 3.14% 1.5% 1.5 = 14.13 47.1 + 14.13 = 61.23 volume: bottom area: 3.14% 1.5% 1.5 = 7.065 volume: 7.065% 5 = 35.325
The side of a cylinder is expanded to get a square. The radius of the bottom of the cylinder is 1 decimeter, and its side area is______ Square decimeter, the surface area is______ Square decimeter, volume is______ Cubic decimeter
The circumference and height of the bottom surface of the cylinder are: 2 × 3.14 × 1 = 6.28 (decimeter); side area: 6.28 × 6.28 = 39.4384 (square decimeter); surface area: 6.28 × 6.28 + 3.14 × 12 × 2, = 39.4384 + 3.14 × 1 × 2, = 39.4384 + 6.28, = 45.7184 (square decimeter); volume: 3.14 × 12 × 6.28, = 3.14 × 1 × 6.28, = 19.7192 (cubic decimeter); answer: the side area of the cylinder is 39.4384 Square minute The surface area of the cylinder is 45.7184 square decimeters, and the volume is 19.7192 cubic decimeters
A 10 cm high cylinder is sawed into two equal blocks along its diameter. The surface area of the cylinder is increased by 80 square centimeters, and the volume of the original cylinder is reduced
The radius of the bottom surface is 2 cm, and the volume is 2 * 3.14 * 2 * 10 = 125.6
Along the diameter of the tree cut more than two surface area is 80, the area of a surface is 40, because the cut surface is rectangular, rectangular area is length * width = 40, length is given in the question, height and width is diameter, diameter is 4, radius is 2
RELATED INFORMATIONS
- 1. What is the total volume of a cylinder with a diameter and height of 6cm at the bottom and how many square centimeters is the total surface area?
- 2. The height of a cylinder is 8 cm. It is cut vertically from the middle. The surface area is increased by 96 square cm. What is the volume of this cylinder?
- 3. After cutting off a 3 cm high section of a cylinder, the surface area is reduced by 18.84 square centimeters. How much is the volume of the cut off part of the cylinder
- 4. If the height of a cylinder is reduced by 2 cm, the surface area will be reduced by 18.84 square cm. What is the bottom area of the cylinder?
- 5. The surface area of a cylinder is () square meters if its bottom area is 7 square meters
- 6. A 20 cm long cylinder is cut into two small cylinders of the same size, and the surface area is increased by 40 cm square. What is the volume of the original cylinder?
- 7. The diameter of the bottom surface of a cylinder is 4cm. Cut the cylinder vertically into two equal rectangles, and increase the surface area by 64 square cm. Calculate the side area of the cylinder
- 8. The side view of a cylinder is just a square with a side length of 18.84 cm. Its bottom radius is () cm, and its height is () cm?
- 9. 1. The side expansion of a cylinder is a square with a side length of 3.14 decimeters. What is the radius of the bottom of the cylinder
- 10. A cylinder is a square with a side length of 62.8 cm. What's the surface area of the cylinder?
- 11. What is the surface area of a cylinder with a height of 10 cm and a bottom radius of 5 decimeters?
- 12. If the height of a cylinder is shortened by 3 cm, its surface area will be reduced by 94.2 square cm. Its bottom radius is () cm? How much is the volume reduced?
- 13. A cylinder with a circumference of 9.42 cm at the bottom is obliquely cut off from the middle. The cut shape is shown in the figure. What is the cut volume?
- 14. The side view of a cylinder is a square, the height of the cylinder is 1256 cm, then the diameter of the bottom of the cylinder is {} cm?
- 15. The expanded side area of a cylinder is a square. The ratio of diameter to height of the bottom of the cylinder is () Very urgent!
- 16. The side length of a square is 8 cm. If the side length is increased by 2 cm, how many square centimeters will the area be increased?
- 17. The side length of square a is 8 cm. The side length of square a of square B is five times that of square A. how much more area is square B than square a What's the percentage?
- 18. Application: the bottom is a square cuboid, height shortened by 5 cm to become a cube, then the surface area reduced by 1.2 square decimeters, find the surface of the cube Find the surface area of cube
- 19. Application problem: a square, its side length increases 5 decimeters, area increases 125 square decimeters, seek the area of original square?
- 20. If the side length of a square is increased by 3 cm, the area will be increased by 45 square cm. The original area of a square is 3 cm______ ．