Rectangular solids

Anything which occupies space is called a solid.
A solid figure bounded by six rectangular faces of which every two opposite sides are equal and parallel is called a rectangular solid or a cuboid.

Each plane surface of a solid is called a face.
The curved surface of a solid is called a lateral surface. Each line of the section of the plane surface is called an edge.
Cube is a special case of a cuboid in which all the edges are equal.
All the six faces of a cube are squares.

A cubic unit (i.e., cubic meter, cubic centimeter, etc,) is a cube each of whose edges is one unit (i.e., meter or centimeter, etc.) of length.

The volume of a solid is the amount of space enclosed within its bounding faces and is measured by the number of cubic units (cubic meter, cubic centimeter, etc.) which it contains.

Formulae

Cuboid:
If l, b, h stand for units of length, breadth, and height respective.
Then,
Volume=l*b*h*
Surface area=2(lb+bh+hi)

Anything which occupies space is called a solid.
A solid figure bounded by six rectangular faces of which every two opposite sides are equal and parallel is called a rectangular solid or a cuboid.

Each plane surface of a solid is called a face.
The curved surface of a solid is called a lateral surface. Each line of the section of the plane surface is called an edge.
Cube is a special case of a cuboid in which all the edges are equal.
All the six faces of a cube are squares.

A cubic unit (i.e., cubic meter, cubic centimeter, etc,) is a cube each of whose edges is one unit (i.e., meter or centimeter, etc.) of length.

The volume of a solid is the amount of space enclosed within its bounding faces and is measured by the number of cubic units (cubic meter, cubic centimeter, etc.) which it contains.

Formulae

Cuboid:
If l, b, h stand for units of length, breadth, and height respective.
Then,
Volume=l*b*h*
Surface area=2(lb+bh+hi)