A cone has a diameter of 6 cm, a height of 8 cm and a volume of () cubic cm I calculated twice, but got different answers, 226.08 and 100.48

The diameter is 6cm, the radius is 3cm, and the bottom area is 3.14 * 9 = 28.26cm2
Then 28.26 * 8 / 3 = 75.36
Your first data is the volume of a cylinder with the same height as the bottom, and the volume of a cone is one third of that

RELATED INFORMATIONS

1. A steel pipe is 5 meters long, with an outer diameter of 10 cm and an inner diameter of 8 cm. Each cubic decimeter of steel pipe weighs 7.8 kg. How many kg does it weigh?
2. How to calculate the log cube formula? A piece of wood: 2 meters long, straight stem 8 cm. How many pieces are equal to a cubic meter? Length 2 meters, straight stem 10 centimeters. How many equal to a cubic? Length 2 meters, straight stem 12 cm. How many equal to a cubic?
3. Calculation formula of log cube I'd like to know how to calculate the cube of log. A friend told me that the bottom area is multiplied by the height, but I've calculated it, and it doesn't seem to be standard
4. A log is 6 meters long, 16 cm in diameter, a total of 150. How many cubic meters is there? How to calculate
5. Cubic formula of cube
6. Is the volume formula of a cube a cube with long edges?
7. Cube formula
8. Cut the cube with an edge length of 2 decimeters into the largest cylinder. The cylinder height is () decimeters, the bottom diameter is () decimeters, and the volume is () cubic decimeters?
9. I'm looking for the cube of 1-100 and the simplified number. Urgent! The most important is the number of 1-100 root sign reduction!
10. In 1 to 100, there are several numbers that are neither square nor cubic
11. A steel pipe is 2 meters long, and its inner diameter is 8 cm, and its wall thickness is 2 cm. If each cubic decimeter of steel weighs 7.8 kg, how many kg does this steel pipe weigh?
12. A kind of grinding wheel, the outer circle diameter is 30 cm, the inner circle radius is 8 cm, the thickness is 10 cm, its volume is how many cubic centimeters
13. A steel pipe is 8 cm in diameter, 1 cm in wall thickness and 1 m in length. How many cubic centimeters is the volume of this steel pipe?
14. What is the buoyancy of a cubic kilogram of wood with a mass of 1kg and a density of 0.4 * 10 Format: known seek answer
15. When a solid aluminum ball with a mass of 540g is put into water and mercury respectively, what is the buoyancy of the aluminum block? (the density of aluminum is 2.7 * 10 & # 179; kg / M & # 179;, the density of mercury is 13.6 * 10 & # 179; kg / m, G is 10N / kg)
16. How much buoyancy does a 2.7kg aluminum block bear when it is completely immersed in water? (ρ al = 2.7 × 103 kg / m3, ρ water = 1.0 × 103 kg / m3)
17. The weight of 19.6n aluminum ball is immersed in a container, the buoyancy is 9.8N, and the density of aluminum is 2700kg / m3 There should be calculation process and formula
18. The density of alcohol is 0,8 * 10 ^ 3kg / m3. When a 0.01m3 aluminum block is put into alcohol, how much buoyancy does it receive,
19. The density of alcohol is 0.8 times 10 to the third power kilogram per cubic meter. When the aluminum block with a volume of 0.01 cubic meter is put into alcohol, what is its buoyancy?
20. The density of a 0.002 cubic meter aluminum block is 2.7 times 10 cubic kilograms per cubic meter. What is the buoyancy of the aluminum block when half of its volume is immersed in water?