In a 3-meter-long, 2-meter-wide and 2-meter-high cuboid pool, put a cylinder with a circumference of 314 square decimeters at the bottom. The water surface rises by 2 decimeters. What is the volume of the cylinder? The circumference of the surface of the cylindrical container is 12.56 cm. Put a conical plumb and submerge it completely. The water surface rises by 6 cm. What is the volume of the conical plumb? A cylindrical glass jar with a bottom diameter of 20 cm. Put a cone with a bottom radius of 8 cm into the water completely, and the water surface rises by 3 cm. Calculate the volume of the cone A cylindrical cup with a bottom radius of 10 cm is filled with water. A conical plumb with a bottom radius of 5 cm is immersed in the water. When the plumb is taken out of the cup, the water surface of the cup drops by 5 cm. How high is the plumb? In a cylindrical container with a bottom area of 20 square centimeters, put a 546 gram starch iron block into it, and the water surface rises by 3.5 cm. What is the ratio of mass to volume of this iron block? Wait until two o'clock

In a 3-meter-long, 2-meter-wide and 2-meter-high cuboid pool, put a cylinder with a circumference of 314 square decimeters at the bottom. The water surface rises by 2 decimeters. What is the volume of the cylinder? The circumference of the surface of the cylindrical container is 12.56 cm. Put a conical plumb and submerge it completely. The water surface rises by 6 cm. What is the volume of the conical plumb? A cylindrical glass jar with a bottom diameter of 20 cm. Put a cone with a bottom radius of 8 cm into the water completely, and the water surface rises by 3 cm. Calculate the volume of the cone A cylindrical cup with a bottom radius of 10 cm is filled with water. A conical plumb with a bottom radius of 5 cm is immersed in the water. When the plumb is taken out of the cup, the water surface of the cup drops by 5 cm. How high is the plumb? In a cylindrical container with a bottom area of 20 square centimeters, put a 546 gram starch iron block into it, and the water surface rises by 3.5 cm. What is the ratio of mass to volume of this iron block? Wait until two o'clock

Ice rhyme ♂ [Zizhu],
In a 3-meter-long, 2-meter-wide and 2-meter-high cuboid pool, put a cylinder with a circumference of 314 square decimeters at the bottom. The water surface rises by 2 decimeters. What is the volume of the cylinder?
Water level rise: 2 decimeters = 0.2 meters
Cylinder volume: 3 × 2 × 0.2 = 1.2 (cubic decimeter)
The circumference of the surface of the cylindrical container is 12.56 cm. Put a conical plumb and submerge it completely. The water surface rises by 6 cm. What is the volume of the conical plumb?
Vessel radius: 12.56 △ 3.14 △ 2 = 2 (CM)
Plumb volume: 3.14 × 2 × 2 × 6 = 75.36 (cm3)
A cylindrical glass jar with a bottom diameter of 20 cm. Put a cone with a bottom radius of 8 cm into the water completely, and the water surface rises by 3 cm. Calculate the volume of the cone
Cylinder radius: 20 △ 2 = 10 (CM)
Cone volume: 3.14 × 10 × 10 × 3 × 1 / 3 = 314 (cm3)
A cylindrical cup with a bottom radius of 10 cm is filled with water. A conical plumb with a bottom radius of 5 cm is immersed in the water. When the plumb is taken out of the cup, the water surface of the cup drops by 5 cm. How high is the plumb?
Plumb volume: 3.14 × 10 × 10 × 5 = 1570 (cm3)
The height of plumb is 1570 × 3 ^ (3.14 × 5 × 5) = 60 (CM)
In a cylindrical container with a bottom area of 20 square centimeters, put a 546 gram starch iron block into it, and the water surface rises by 3.5 cm. What is the ratio of mass to volume of this iron block?
Volume of iron block: 20 × 3.5 = 70 (cm3)
The ratio is 546:70 = 7.8 (g / cm3)