Calculation formula of cylinder volume: cylinder volume V=πr? H, where: v represents volume, π represents pi, that is, 3. 14 15 169, r represents the radius of the bottom plane, and h represents the height of the cylinder. That is, the volume V=πr? h = 3. 14 * 1 * 1 * 2 = 6.28m？ .

Technical terms of volume and geometry. When the space occupied by an object is a three-dimensional space, the size of the space occupied is called the volume of the object. The international unit of volume system is cubic meters. One-dimensional space objects (such as straight lines) and two-dimensional space objects (such as squares) are all zero volumes.

Cylinder: A polyhedron has two parallel faces with the same size, and the intersection lines of the other two adjacent faces are parallel to each other. Such a polyhedron is a cylinder; In addition, cylinders can also be divided into positive cylinders and oblique cylinders. Cylinders, separable cylinders, prisms.

Cylinder: a cylinder is a geometric body formed by taking the straight line where one side of a rectangle is located as the rotation axis and the other three sides rotate around the rotation axis once. It has two parallel circular bottoms with the same size and 1 curved sides. Its lateral spread is rectangular.

Volume formula is a formula for calculating volume, that is, a mathematical formula for calculating the volume of various geometric shapes. For example: cylinder, prism, cone, platform, sphere, ellipsoid, etc.

The difference between a cylinder and a cone

1, the cylinder has two bottom faces and the cone has only one bottom face; The two bottom surfaces of a cylinder are two completely equal circles, and the bottom surface of a cone is a circle.

2. The distance between the two bottom surfaces of a cylinder is called the height of the cylinder. Countless heights can be made between the two bottom surfaces of the cylinder; The distance from the top to the bottom of the dust cone is called the height of the dust 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.

3. 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. Li Si