1. Module 6

1.1. Lesson 1

Mathematics 10-3 Module 6 Lesson 1

Module 6: Triangles and Other Polygons

 

Lesson 1: Similar Polygons

 

Focus

 

This illustration shows an artist drawing a cartoon animal.

© shadow216/shutterstock

Have you ever tried to draw a picture of a favourite cartoon character? For most people it is a difficult task, especially if the final drawing is to be larger or smaller than the original. Your goal is to end up with a shape that is as similar as possible to the original.

 

Geometry is the study of shapes and their relationships. An important class of shapes is similar polygons. This lesson deals with similar polygons and the relationships among their angles and among their sides.

 

Lesson Questions

 

In this lesson you will explore the following questions:

  • What techniques can be used to draw similar polygons?

  • What are the relationships among the sides of similar polygons?

  • What are the relationships among angles of similar polygons?

Assessment

 

You will complete the Lesson 1 Assignment Booklet for assessment. Download the Lesson 1 Assignment Booklet and save it in your course folder now. You will receive instructions on how to complete the Assignment Booklet later in the lesson. You will also be prompted to start working on the Unit 3 Project.

 

There are other activities that you will complete throughout this lesson. It is important to complete all activities and save them in your course folder. Your teacher may ask to see your work at any time.

 

The lesson provides you with opportunities to investigate, review examples, and practise the knowledge and skills you are learning. In Self-Check activities you can compare your answers to see if you are on track. If you are having difficulty with concepts or calculations, contact your teacher.

 

Did You Know?

 

BC, a popular comic, has been run daily since 1958. That’s over 50 years, or 18 250 comics.



Required Materials and Equipment

 

For this lesson you will need the following supplies: