Component or property used to describe a reference space.

### Educational notes

- The dimensions of a geometric figure are the number of components needed to describe the figure. This is a vectorial perspective, since the dimension of a vector space includes the number of vectors needed to define a basis for a vector space.
- Therefore, in this context, a square is said to be a geometric figure that has 2 dimensions, whereas a pyramid is said to be a figure that has 3 dimensions. This is the same thing as saying that a square is a two-dimensional geometric figure and a pyramid is a three-dimensional geometric figure.

### Examples

- A line is a one-dimensional geometric figure.
- A polygon is a two-dimensional geometric figure.
- A solid is a three-dimensional geometric object.