Lines A line is made by connecting two points. It can go in any direction, but it must be straight. A line does not end so arrows are put at both ends to show that the line goes on into infinity in both directions A drawing of a line looks like this: A It has two names, B AB & BA Line Segments A line segment is a piece or a part of a line. It ends and has points at each end, so I can measure it. A drawing of a line segment looks like this: C D It has two names, CD & DC Rays A ray is part line and part line segment. It starts in an end point and goes on into infinity at the other end. A drawing of a ray looks like this: E F It has only one name, EF, because its name must begin with its starting point. Drawing and Labeling Lines and Line Segments and Rays Draw Draw Label Draw Line AB Line Segment CD that intersects Line AB the point that they intersect T Ray EF parallel to line segment CD C E A T D B F