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Summary

Math 10C Module 1 Lesson 7

Module 1 Part 2: Trigonometry

 

Lesson 9 Summary

 

In this lesson you examined the following key questions:

  • In what situations can the concepts of trigonometry be used to solve problems?

  • How do I use sine, cosine, and tangent ratios and my calculator to find missing angles in right triangles?

In Lesson 10, you will learn that trigonometry can be used to solve right triangles. A triangle is solved when the given information about the triangle is used to determine the unknown lengths and angles. A triangle is solvable when the following minimum information is known:

  • the measures of two sides

  • the measure of one side and the measure of an acute angle

In all other situations where the minimum information is not known, a triangle cannot be solved.

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