Discover

Math 10C Module 1 Lesson 7

Module 1 Part 2: Trigonometry

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Discover

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Watch and Listen

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

Β© Ramon Berk/shutterstock

Have you ever wondered how pilots calculate a safe angle of descent when they are landing 747 planes? Go to β€œExploring 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.

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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 toΒ  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

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Share

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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

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Go toΒ  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