1. Module 5

1.26. Lesson 6

Mathematics 10-3 Module 5 Lesson 6

Module 5: Angles

 

Lesson 6: Problems Involving Parallel and Perpendicular Lines

 

Focus

 

This graphic illustrates the layout of an ice hockey rink.

Hockey rinks are a common feature on the Canadian landscape, but have you ever looked carefully at the markings on the ice? The layout consists of a series of circles, parallel lines, and perpendicular lines.

 

In the illustration, a puck has travelled from the left side of the rink crossing both blue lines. The linesman’s whistle blows and the signal for “offside” is given. If the puck travelled in a straight line, what can you say about the angles at the two lines where the puck crossed?

 

Lesson Questions

 

In this lesson you will explore this question: How are the measures of angles determined in situations involving parallel lines and transversals?

 

Assessment

 

You will complete the Lesson 6 Assignment Booklet for assessment. Download the Lesson 6 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.

 

Remember to save all activities, including those that are not part of the Assignment, in your course folder.

 

Required Materials and Equipment

 

For this lesson you will need the following supplies:

  • a protractor

  • scissors

  • two blank sheets of paper

  • a straightedge or ruler