What are the characteristics of cubes, cuboids, cones and cylinders?

1, cube: a straight parallelepiped with square sides and bottom, that is, a hexahedron with equal sides.

2. Cuboid: It consists of six faces, and the relative areas are equal. There may be two faces (four faces may be rectangular, or all six faces may be rectangular) that are square.

3. Cone: The side of the cone spreads along the generatrix and is a fan. The arc length of this sector is equal to the circumference of the cone bottom, and the radius of the sector is equal to the length of the cone generatrix.

4. Cylinder: The two bottom surfaces of the oblique cylinder are circles with the same radius; The two bottom surfaces of a straight cylinder are circles with equal radii.

Extended data:

Countless heights can be made between the two bottom surfaces of the cylinder; The distance from the top to the bottom of the cone is called the height of the cone. The cone has only one height; The side development diagram of the cylinder is rectangular or parallelogram; The side of the cone is fanned out.

Cones and cylinders with equal bottoms and equal heights, the volume of the cone is one third of the volume of the cylinder; Cones and cylinders with equal volume and height, the bottom area of the cone is three times that of the cylinder; For cones and cylinders with equal volume and base area, the height of the cone is three times that of the cylinder.