Points, Lines, Segments, and Rays Chapter 8 Lesson 1 Taken from Mr. Hammond’s Website

Points A point is a location in space. It has no size. It is named by a capital letter. . Read it as: “Point A” Write it as: “A” A

Lines A line is a series of points that extends in two opposing directions without end. Lines have no thickness. Q S Read it as: “Line QS” or “Line SQ” Write it as: QS or SQ

Segments R B A segment is a part of a line with two endpoints. Read it as: “Segment RB” or “Segment BR” Write it as: RB or BR

Rays A ray consists of an endpoint and all the points of a line on one side of the endpoint. C D Read it as: “Ray CD” (the order does matter) Write it as: CD

Intersecting When two line segments, rays, or lines cross over each other they are said to intersect. E We say there are two lines that intersect. C F G

Perpendicular Are special intersecting lines. The point of intersection froms a right angle. Image taken from: http://kwiznet.com

Parallel Parallel lines are lines that will never touch. They are always the same distance apart. Image taken from:http:// regentsprep.org

Classify the lines below. 1. 2. 3. 4.

Answers 1. Intersecting Lines 2. Intersecting, perpendicular line and ray 3. Parallel line segments 4. Non-intersecting line segment and ray.