Unit 3 Lesson 4 Parallel and Perpendicular Lines

Unit 3 Lesson 4: Parallel and Perpendicular Lines 

Unit 3 Lesson 4 Parallel and Perpendicular Lines Logo

Lesson Overview

Perpendicular Transversal Theorem

 

What You Will Learn

What you will learn banner
  • understanding how to use similar reasoning to prove that lines are parallel or perpendicular.

Overview

Graph for Parallel Lines

In the Solve It, you likely made your conjecture about Oak Street and Court Road based on their relationships to Schoolhouse Road. In this lesson, you will use similar reasoning to prove that lines are parallel or perpendicular.

Essential Understanding

You can use the relationships of two lines to a third line to decide whether the two lines are parallel or perpendicular.

 

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.

 

Additional Resources

Lesson 4 Parallel and Perpendicular Lines

Additional Resources

Proceed to the Next Page

Prepare for Application

Instructions

Prepare for Application

You have now studied Parallel and Perpendicular Lines. 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.

 

Create an extra journal called 'Unit 3: Lesson 4 activities' and do these in your journal.

 

 

Activity 1

Can you assemble the pieces below to form a picture frame with opposite sides parallel? Explain.

Activity 1

 

Activity 2

Refer to problem two on page 166 of your textbook.

Using the information given, could you also conclude that ab?

Explain.