Line segment

A line segment is a part of a straight line that has two endpoints, marking its start and finish. Unlike a line, which extends infinitely in both directions, a segment has a definite length. You can think of it as a stretched out piece of string with specific ends. Line segments are fundamental in geometry, helping define shapes, measure distances, and understand spatial relationships. Their length can be measured with rulers or other tools, making them essential for precise calculations and construction.