Module 5

Module 5: Angles

 

Lesson Summary

 

The mittens in the photograph are part of the Canadian Museum of Civilization’s collection of art and artifacts. The mittens were made by a Cree artisan. The artisan created an imaginative geometric design using triangles. Angles in triangles are just one of the angle relationships you examined in this lesson.

 

In this lesson, you explored these questions:

• What are complementary and supplementary angles?
• What are vertically opposite angles?
• How are complementary and supplementary angles used to solve problems?

Check your level of understanding of the materials covered in this lesson by completing “Lesson 4 Traffic Lights.” If you select an amber or red traffic light in the multimedia piece, you will receive information about additional work you can complete to improve your understanding of the topics. Complete the suggested work before you proceed to the Lesson 4 Assignment. If you experience difficulty, contact your teacher before starting the Lesson 4 Assignment.

 

To answer the questions regarding complementary and supplementary angles, you examined the relationships among adjacent angles, angles in triangles, and angles formed by intersecting lines.

 

Assignment

 

Retrieve the Lesson 4 Assignment Booklet you saved in your course folder at the start of this lesson. Complete the Assignment Booklet. Resave your Assignment Booklet in your course folder and submit a copy to your teacher for assessment.

 

Unit 3 Project

 

Before you move on to the next lesson, make sure you have completed and saved the images of supplementary and complementary angles you found in your topic for the Share section.

 

Remember to save all this work, since your work will be needed to complete your Unit 3 Project.

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