In geometry, a straight line, usually abbreviated line, is an infinitely long object with no width, depth, or curvature. It is a special case of a curve and an idealization of such physical objects …

In geometry, a line is a straight one-dimensional figure that does not have a thickness, and it extends endlessly in both directions. Diagram A represents a line.

Jul 23, 2025 · A line in geometry is a straight path that goes on forever in both directions. It has no thickness and is usually drawn between two points, but it keeps going without stopping.

In geometry, it's a common mistake to say a segment and a line are one and the same. A segment has a definite beginning and a definite end, with each end represented by a point.

Illustrated definition of Line: In common language it is a long thin mark or boundary. In Geometry a line: is straight (no...

Line, Basic element of Euclidean geometry. Euclid defined a line as an interval between two points and claimed it could be extended indefinitely in either direction.

A line is a collection of points along a straight path extending indefinitely in both directions. This is indicated by the arrows at each end, shown in the figure below.