## GMAT Quantitative Review

## 3.0 Math Review

### 3.3 Geometry

### 1. Lines

In geometry, the word “line” refers to a straight line that extends without end in both directions.

The line above can be referred to as line *PQ* or line . The part of the line from *P* to *Q* is called a *line segment*. *P* and *Q* are the *endpoints* of the segment. The notation is used to denote line segment *PQ* and *PQ* is used to denote the length of the segment.