Definition of Line
Submitted by Isoscel on Sat, 12/08/2007 - 15:19.
The line is a basic geometry concept.
You can think of a line as a string that is very well stretched and is very thin.
In Euclidean geometry there is exactly one line that passes through two different points.
Here we have two points, A and B, and the line that passes through them.
Note: Usually in formal geometry the point and the line and not really defined. They have only some proprieties (axioms) that are associated with them.