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# 8 6 Sin Cos Ratios Noted

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### 8 6 Sin Cos Ratios Noted

1. 1. 8-6 The Sine and Cosine Ratios
2. 2. Review Tangent X Z Y opp adj hyp
3. 3. Tangent example X Z Y a 14 34 ͦ
4. 4. What about the hypotenuse? X Z Y a 14 34 ͦ c
5. 5. Sine X Z Y opp adj hyp
6. 6. sin 24 °= ? <ul><li>0.4023 </li></ul><ul><li>0.9135 </li></ul><ul><li>0.4067 </li></ul><ul><li>0.4463 </li></ul>0 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
7. 7. sin ___ = 0.4856 <ul><li>26 ° </li></ul><ul><li>29 ° </li></ul><ul><li>45 ° </li></ul><ul><li>0.0085 </li></ul>0 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
8. 8. Solve for x. <ul><li>2.3 </li></ul><ul><li>2.0 </li></ul><ul><li>3.3 </li></ul><ul><li>2.8 </li></ul>X 9 23 ° 0 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
9. 9. Cosine X Z Y opp adj hyp
10. 10. cos 24 °= ? <ul><li>0.4023 </li></ul><ul><li>0.6754 </li></ul><ul><li>0.9135 </li></ul><ul><li>0.4463 </li></ul>0 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
11. 11. Solve for x. <ul><li>17 </li></ul><ul><li>5 </li></ul><ul><li>13 </li></ul><ul><li>14 </li></ul>X 12 23 ° 0 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
12. 12. How are we going to keep this all together?
13. 14. SOHCAHTOA
14. 15. SPICSA Page 314 2-16 even