4 Applications of Trigonometry

In This Chapter

4.1 Solving Right Triangles

4.2 Applications of Right Triangles

4.3 Law of Sines

4.4 Law of Cosines

4.5 Simple Harmonic Motion

     CHAPTER 4 Review Exercises

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The wine rack shown is constructed from right triangles.

A Bit of History Trigonometry was developed from early efforts to advance the study of astronomy by predicting the paths and positions of the heavenly bodies and to improve accuracy in navigation and the reckoning of time and calendars.

Much of the mathematics developed in the eighteenth century arose in an attempt to describe certain physical phenomena. For example, what is the shape ...

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