HNRS Geometry Basics: Lines, Rays, Planes

To draw a line, you must have ......

• one arrow

• a rhombus

• an arrow on each end

• two end points

This figure is called a ​ ​ (a)   that contains three ​ (b)   . You can name this plane ​ (c)   or Plane ​ (d)  

• Line
• plane
• points
• ABC
• rays
• mAB
• rectangle
• A
• B

In math these are called...?

• Points

• Lines

• Planes

• Rays

You can name the plane ​ (a)   and plane ​ (b)  

• AUC
• R
• ABC
• CBA
• U
• J

A plane ...

• has no dimension 
• is one-dimensional
• is two-dimensional
• is three-dimensional

• Line q
• Line p

• Line r
• Line HK

An example of 2 non-collinear points. Remember to look up collinear and coplanar in your notes!

• D, E
• C, B
• B, E
• F, B

Name two opposite rays

• there are no opposite rays on this plane

How would you describe points F, L, I?

• collinear
• non-coplanar
• symmetric
• coplanar

What is the name of this ray?

• Ray AB
• Ray BA
• Ray ABC
• Ray AC