Unit 3 Lesson 3 Proving Lines Parallel
Unit 3 Lesson 3: Proving Lines Parallel
Lesson Overview
Proving Lines Parallel
What You Will Learn
- understanding how to use congruent and supplementary relationships of particular angle pairs to prove lines parallel
Additional Resources
Overview
You will use the congruent and supplementary relationships of the unique angle pairs to prove lines are parallel.
Essential Understanding
You can use specific angle pairs to decide whether two lines are parallel.
Read pages 105-112 in your course textbook by clicking the textbook icon.
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 3: Proving Lines Parallel
Additional Resources (Proving Lines Parallel)
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Prepare for Application
Instructions
You have now studied Proving Lines Parallel. 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 a journal post called 'Unit 2: Lesson 3 activities' and do these activities in your journal.
Activity 1
Use the diagram below for the question below:
Which lines are parallel? Justify your answer.
Activity 2
Write a flow proof for the following:
Given:
Prove:
Activity 3
Refer to problem three on page 159. What is another way to explain why ? Justify your answer.
Activity 4
What is the value of w for which in the figure below?
