1. Lesson 4

Mathematics 20-3 Module 4

Module 4: The Right Kind Of Triangles

 

Lesson 4: Solving Problems Involving Two or More Right Triangles

 

Focus

 

This is a photo of a Noorduyn Norseman plane lifting off of a lake.

iStockphoto/Thinkstock

The Noorduyn Norseman was once a familiar sight in the Canadian North. This floatplane, which was designed to serve northern communities, was built in Canada between 1935 and 1959. There are still Norseman planes transporting cargo and passengers. As a tribute to this aircraft and the bush pilots who flew them, every summer there is a Norseman Floatplane Festival at Red Lake, Ontario.

 

Bush pilots flying over wilderness lakes and forests must know their position at every moment. Did you know that trigonometry is a fundamental tool for for navigating in the air?

 

In this lesson you will learn to navigate through trigonometric problems involving two or more right triangles.

 

Lesson Question

 

In this lesson you will investigate the following question:

  • How are problems involving two or more right triangles solved?
Assessment

 

Your assessment for this lesson may include a combination of the following:

  • course folder submissions from the Try This and Share sections of the lesson

  • your contribution to the Mathematics 20-3: Glossary Terms

  • Lesson 4 Assignment (Save a copy of your lesson assignment to your course folder now.)

  • the Project Connection
Materials and Equipment
  • calculator
  • tape measure
  • clinometer (made in Lesson 3)