Put a cone with a diameter of 8 cm on the bottom into a cylindrical container with a diameter of 10 cm on the bottom. When the container is submerged, the water surface rises by 4 cm and the height of the cone is calculated Put a cone with a bottom diameter of 8 cm into a cylindrical container with a bottom diameter of 10 cm. At this time, the water in the container just submerges the lead block, and the water surface rises by 4 cm. Calculate the height of the cone Why!

Put a cone with a diameter of 8 cm on the bottom into a cylindrical container with a diameter of 10 cm on the bottom. When the container is submerged, the water surface rises by 4 cm and the height of the cone is calculated Put a cone with a bottom diameter of 8 cm into a cylindrical container with a bottom diameter of 10 cm. At this time, the water in the container just submerges the lead block, and the water surface rises by 4 cm. Calculate the height of the cone Why!

10/2=5
5*5*4*3.14=314
314*3=942
8/2=4
4*4*3.14=50.24
942/50.24=18.75

There is a cylindrical figure with a diameter of 6cm at the bottom and a height of 8cm. Inside it is a conical figure with a height of 4cm

The volume of the original cylinder is 3.14 * 3 * 3 * 8 = 226.08 cubic centimeter
Volume of cone = 3.14 * 3 * 3 / 3 * 4 = 37.68 cubic centimeter
Volume of cylinder = 226.08-37.68 = 188.4 CC

The volume of a cone and a cylinder is equal, the ratio of the bottom radius is 3:2, the height of the cone is 8 cm, and the height of the cylinder is 8 cm______ Cm

Suppose the radius of the cylinder is 2R and the height of the cylinder is h, then the radius of the cone is 3R, π (2R) 2H = 13, π (3R) 2 × 8, & nbsp; π 4r2h = 13, π × 9r2 × 8, & nbsp; & nbsp; & nbsp; & nbsp; 4H = 24, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; H = 6; a: the height of the cylinder is 6cm