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Trigonometry at a Glance


We've learned about the Pythagorean Theorem, the geometric mean, and magical right triangles that would give Harry Potter a run for his money. In this chapter, we've finally reached the center of the Tootsie-Pop, the delicious creamy filling in the center of every éclair.

Bon appétit, because it's time for trigo-nom-nom-nom-etry!

Trigonometry is a fancy term for triangle measurement. More specifically, it relates the angle measurements of triangles to the lengths of their sides. It's a big scary word, but the actual concepts aren't too complicated as long as you keep in mind everything we've talked about so far.

Example 1

Find the value of x.





Exercise 1

Express sin P, cos P, and tan P using a, b, and c.