Line

A line is a straight, continuous collection of points that extends infinitely in both directions. It has length but no thickness or width, meaning it represents a perfect, unending path with no curves or bends. In geometry, lines help us understand relationships between shapes and points, serving as fundamental building blocks for more complex figures. Unlike line segments or rays, which have specific start and end points or only extend in one direction, a true line goes on forever, symbolizing a limitless, straight connection in space.