GMAT Quantitative Review
3.0 Math Review
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.