1. Trig and Transformation Review

2. Transformation Translation  move  gives you direction and amount Reflection  flip  x/y axis count boxes Rotation  spin – R90 (-y,x) – R180(-x,-y) – R270(y,-x) Dilation  shrink or enlarge  multiply/divide by scale factor

3. opposite hypotenuse adjacent hypotenuse opposite adjacent

4. Find the sine, the cosine, and the tangent of angle A. Give a fraction and decimal answer (round to 4 places). 9 6 10.8 A Shrink yourself down and stand where the angle is. Now, figure out your ratios.

5. Finding a side. (Figuring out which ratio to use and getting to use a trig button.)

6. Ex: 1 Figure out which ratio to use. Find x. Round to the nearest tenth. 20 m x tan 2055 ) Shrink yourself down and stand where the angle is. Now, figure out which trig ratio you have and set up the problem.

7. Finding an angle. (Figuring out which ratio to use and getting to use the 2 nd button and one of the trig buttons.)

8. Ex. 1: Find . Round to four decimal places. 9 17.2 Make sure you are in degree mode (not radians). 2 nd tan 17.29) Shrink yourself down and stand where the angle is. Now, figure out which trig ratio you have and set up the problem.

9. Ex. 2: Find . Round to three decimal places. 23 7 Make sure you are in degree mode (not radians). 2 nd cos 723)

10. Solve A ladder leans against a building. The foot of the ladder is 6 feet from the building. The ladder reaches a height of 14 feet on the building. Find the length of the ladder to the nearest foot. Find to the nearest degree, the angle the ladder makes with the ground

11. Solve A ladder 6 feet long leans against a wall and makes an angle of 71º with the ground. Find to the nearest tenth of a foot how high up the wall the ladder will reach.