Calculation process:

Knowing the "diameter" and "length" can calculate the volume.

Formula: volume = cylinder bottom area * height =3. 14* radius * radius * height.

Radius = diameter /2

So: volume = 3.14 * 55/2 * 55/2 * 56 =132979 cubic millimeter = 132.979 cubic centimeter.

The mass of a cubic centimeter of copper is 8.9 grams.

132.979 * 8.9 =1183.51g = about1.2kg.

Extended data:

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.

Volume formula: calculate various planes and surfaces.

Generally speaking, geometry is a mathematical formula of the volume of a graph composed of faces, intersection lines (intersection points of faces) and intersection points (intersection points of intersection lines or convergence points of surfaces).

The following formulas are used to calculate the volume of various graphs:

Cuboid:

(cuboid volume = length × width × height)

Cube:

(Cubic volume = side length × side length × side length)

Cylindrical (perfect circle):

Volume of cylinder (perfect circle) = π× (bottom radius× bottom radius )× height.

The volume of the above three-dimensional graphics can be summarized as:

(bottom area × height)

Cone (perfect circle):

Cone (perfect circle) volume = π× bottom radius× bottom radius× height /3

Corner cone:

Pyramid product = bottom area × height /3

Sphere:

Sphere volume = 4/3(π× radius cube)

Prism:

Note: v: volume; S 1: upper surface area; S2: lower surface area; H: high.

Physical formula:

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