1. 8.3 NOTES Right Triangle Trigonometry

2. Warm up Find the value in radical form 1) 2)

3. Trigonometric Ratios SINE – COSINE – TANGENT – sin <A = cos <A = tan <A = SOH – CAH - TOA

4. Sine, Cosine, and Tangent. SOH – CAH – TOA Find: tan T = tan U = sin T = sin U = cos T = cos U =

5. More Practice SOH – CAH – TOA Find: tan T = tan U = sin T = sin U = cos T = cos U =

6. Indirect Measurement Use right triangle trig to find the height of the tree. Alison walked 125 feet from a tree and measured a 32 degree angle from the ground to the top of the tree. Estimate the height of the tree.

7. Finding values Find the value to the nearest tenth 1) 2)

8. Finding values continued Find the value to the nearest tenth 3) 4)

9. More examples Find the value to the nearest tenth 1) 2)

10. 8.3(a) HW on mathxlforschool.com due Sunday at midnight