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Lesson 7: Introduction to Trigonometry

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Math 10C Module 1 Lesson 7

Module 1 Part 2: Trigonometry

 

Discover

 

Watch and Listen

 

This shows a photo of a 747 plane preparing to land.

© Ramon Berk/shutterstock

Have you ever wondered how pilots calculate a safe angle of descent when they are landing 747 planes? Go to “Exploring Trigonometry” and view the video, which talks about how trigonometry is used at airports. You will find the video on the right-hand side of the website.

 


Tip
Labelling Triangles:
In triangles, capital letters are used for angles and lower case letters are used for sides. The side opposite each angle is the same letter in lower case.
Try This 1 - 4

Go to  Try This 1 - 4 , print (or copy by hand) and complete each part on your page. Check your work using the link below.


Possible TT1-4 (Try This 1 - 4) Solutions

 
Share

 

Get together with another student or students (if possible) and compare your results.

  • Compare the size of your triangle (the lengths of a, b, and c) with the other ones that have been posted on the discussion board. What do you notice?

  • Compare the ratios , , and with others in your class. What do you notice?

  • Can you make a generalization from your results?

Try This

 

Go to  Try This 5 - 6 , print and complete (or copy by hand).

Use the link below to check your answers to Try This 5 - 6.

Possible TT5 - 6 (Try This 5 - 6) Solutions