If the height of a cylinder is reduced by 2 cm, the side area will be reduced by 50.24 square cm. How many cubic centimeters will its volume be reduced?

If the height of a cylinder is reduced by 2 cm, the side area will be reduced by 50.24 square cm. How many cubic centimeters will its volume be reduced?

Bottom circumference: 50.24 △ 2 = 25.12 (CM); bottom radius: 25.12 △ 3.14 △ 2 = 4 (CM); bottom area: 3.14 × 42 = 50.24 (square cm); reduced volume: 50.24 × 2 = 100.48 (cubic cm); answer: the volume of this cylinder is reduced by 100.48 cubic cm

The volume of a cone part is 120 cubic centimeters, its bottom area is 24 square centimeters, how many centimeters is the height of this part!

120 * 3 / 24 = 15 cm

A cuboid wood block, cut from the top of the cuboid 5 cm high, the rest is a cube, the surface area reduced by 120 square centimeters______ Cubic centimeter

The original cuboid's length and width are: 120 △ 4 △ 5, = 30 △ 5, = 6 (CM); the original cuboid's height is: 6 + 5 = 11 (CM); the original cuboid's volume is: 6 × 6 × 11 = 396 (cm3); answer: the original cuboid's volume is 396 cm3. So the answer is: 396