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Course: Geometry (all content)>Unit 1

Lesson 1: Lines, line segments, and rays

Lines, line segments, and rays review

Review the basics of lines, line segments, and rays.  Identify and draw lines, line segments, and rays in practice problems.

What are $\text{lines}$‍  and $\text{line segments}$‍  and $\text{rays}$‍ ?

A $\text{line}$ extends forever in both directions, like this:
A $\text{line segment}$ is just part of a line. It has two endpoints, like this:
A $\text{ray}$ starts at one point and continues on forever in one direction, like this:

Practice set 1: Identify lines, line segments, and rays

Problem 1A
Which of the following figures show a dashed $\text{ray}$?
Consider the entire dashed structure in each figure.

Want to try more problems like this? Check out this exercise.

Practice set 2: Draw lines, line segments, and rays

Problem 2A
Drag the lines so one line goes through points $\text{A}$ and $\text{D}$, and the other line goes through points $\text{B}$ and $\text{C}$.
These are lines because they each have
and continue forever in
.

Want to try more problems like this? Check out this exercise.

Want to join the conversation?

• this stuff is very easy i think
a ray is a line that has one endpoint and on one side it goes on forever
a line goes on forever in both directions
a line segment has two endpoints
• I agree I love math
• Why is it two endpoints?
• Because two endpoints for a line segment means it cannot continue in either direction. Hope this helps!
• How do the lines get there names?
• it is in lesson 2
• How do i do the work sheet with the lines you have to drag? Its not working for me.
• you can draw the line segments in pencil.
• A ray is a line that never stops from one side
• it keeps saying I'm not doing it when I'm doing it is some type of glitch
• If you hit the refresh button it should work
• If someone got it wrong and they want to try to whole thing over again, shouldn't you change the questions so they don't memorize it?
• If you do try to take the tests and quizzes again, you will find different questions. However, there are only so many questions in the pool to draw from, so on occasion you will find a repeat.