Unit 1 Lesson 1 Points, Lines & Planes
Unit 1 Lesson 1: Points, Lines & Planes
Lesson Overview
Points, Line, and Planes
What You Will Learn
- basic geometric facts that the rules of geometry are built upon
Resources
Overview
In this lesson, you will learn the basic geometric facts that the rules of geometry are built upon. You will show your learning by identifying points, lines, and planes.
Essential Understanding
Geometry is a mathematical system built on accepted facts, essential terms, and definitions. Some words such as point, line, and plane are undefined in geometry. Undefined terms are the basic ideas you can use to build the definitions of all other figures in geometry. Although you cannot define undefined terms, it is essential to have a general description of their meanings.
This course is based on a textbook that is viewable by clicking on the textbook icon. Keep the textbook open while you go through the lesson so that you may refer to it throughout the lesson.
Lesson 1: Points, Lines, and Planes
Additional Resources (Points, Lines & Planes)
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Prepare for Application
Instructions
You have now studied points, lines, and planes. It is now time to demonstrate your learning.
Try the activities below on your own. You should be able to answer these before beginning the practice.
Do these activities in your journal.
Activity 1
What are two other ways to name?
What are two more ways to name plane P?
What are the names of three collinear points?
What are two points not coplanar with points R, S, and V?
Activity 2
What are the names of the two planes that intersect?
Why do you only need to find two common points to name the intersection of two distinct planes?
Activity 3
- and form a line. Are they opposite rays? Explain.
Activity 4
- What plane contains points L, M, and N? Copy the figure and shade the plane.
- What is the name of a line that is coplanar with and ?