1. [8-3] Trigonometry Mr. Joshua Doudt Geometry pg. 507 - 513

2. Goal To use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles

3. Rules

4. Depends on Location!!! A B C X Y Z Sin A?? Cos A?? Tan A?? Sin C?? Cos C?? Tan C?? Sin X?? Cos X?? Tan X?? Sin Y?? Cos Y?? Tan Y?? First, identify the opposite, adjacent, and hypotenuse How? Depends on the location of the angle!!

5. Plm 1 – Write Trigonometric Ratios A B C X Y Z 17 8 15 5 43

6. Problem 2 – Use Trig. Ratio to find Distance!! Find the value of w to the nearest tenths. 17 54 w w 28 1.0 w 33 4.5

7. Plm 3 – Using Inverse 6 10 H XB 15 20 X M N

8. Homework Pg 510 #11-19 #22-27