Explain Line segment

Let us learn about Line Segment,

A line segment is a connected piece of a line. It has two endpoints and is named by its endpoints. Sometimes, the symbol – written on top of two letters is used to denote the segment. This is line segment CD (Figure 1).

Figure 1 Line segment.

It is written CD (Technically, CD refers to the points C and D and all the points between them, and CD without the refers to the distance from C to D.) Note that CD is a piece of .

Postulate 7 (Ruler Postulate): Each point on a line can be paired with exactly one real number called its coordinate. The distance between two points is the positive difference of their coordinates (Figure 2).

Figure 2 Distance between two points.

Hope the above explanation helped you.