sommaire
I. Volume of a right block
1.volume units
A unit of volume often used is the cubic meter 
.1 is the volume of a cube with an edge of 1 m.
Other units of volume are also used, in particular :
- the cubic decimeter is the volume of a cube of 1 dm of edge;
- the cubic centimeter is the volume of a cube of 1 cm of edge;
- the cubic millimeter is the volume of a cube of 1 mm of edge;
2.volume of a rectangular parallelepiped by enumeration
Example:
We fill the rectangle parallelepiped below completely with cubes of 1 cm edge.
At the bottom of the cube, 5 rows of 4 small cubes are placed.
5×4=20, so there are 20 small cubes at the bottom of the right block.
In the right block, 3 of these layers are superimposed.
3×20=60, so the cube contains 60 cubes of edge 1 cm.
The volume of this rectangular parallelepiped is therefore 60 .
3.volume and formula
Example:
A rectangular parallelepiped has length 12 cm, width 5 cm and height 7 cm.
The volume of this rectangular parallelepiped is :
Have you assimilated this course on the right block and the calculation of volumes in 6th grade?
QCM de maths sur le pavé droit et calcul de volumes en 6ème.
Skills to learn about the right block:
- To know the definition of the right block (also called the parallelepiped);
- Know the formula for volume;
- Know how to convert volumes;
- To represent the pattern of a rectangular parallelepiped;
- Solve problems.
This course is in accordance with the official programs of thenational education.
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