In Chapter 4 we learned about the six

**trig functions:****opposite/hypotenuse=sine****adjacent/hypotenuse=cosine****opposite/adjacent=tangent****hypotenuse/opposite=cosecant****hypotenuse/adjacent=secant****adjacent/opposite=cotangent**

**tan(30)=12/x**to find x. We also learned how to use the

**Unit Circle**to find the measure of sides of triangles by using the

**45-45-90**and

**30-60-90**triangles.We use trig functions when working out word problems dealing with

**angles of depression**which is when you look down and

**angles of elevations**when you look up. You can also solve inderect mesure which is the word problem

**I made up using the**

**angles odd depression**.

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