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8.4 Trigonometry

8.4 Trigonometry. Agenda: 8.4 Day 1 Notes. Example 1: Given the triangle, label the sides (opposite, adjacent, hypotenuse) according to the specified angle. Angle S. Example 1: Given the triangle, label the sides (opposite, adjacent, hypotenuse) according to the specified angle. b. Angle P.

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8.4 Trigonometry

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  1. 8.4 Trigonometry Agenda: 8.4 Day 1 Notes

  2. Example 1: Given the triangle, label the sides (opposite, adjacent, hypotenuse) according to the specified angle. • Angle S

  3. Example 1: Given the triangle, label the sides (opposite, adjacent, hypotenuse) according to the specified angle. b. Angle P

  4. Example 2: Given the triangle, label the sides (opposite, adjacent, hypotenuse) according to the specified angle. a. Angle R b. Angle S

  5. Example 1 Express the following as a fraction and as a decimal to the nearest hundredth. • sin L • cos L • tan L

  6. Example 1 Express the following as a fraction and as a decimal to the nearest hundredth. • sin N • cos N • tan N

  7. ***Calculator MODE has to be inDEGREES!!!

  8. Example 3: Round to the nearest tenth. a. b.

  9. Example 3: Round to the nearest tenth. c. d.

  10. Example 3: Round to the nearest tenth. e.f.

  11. Example 4: Use trigonometric ratios to find the value of the variables. Round to the nearest hundredth. A)

  12. 5 27 x Example 4: Use trigonometric ratios to find the value of the variables. Round to the nearest hundredth. B)

  13. Example 5: A fitness trainer sets the incline on a treadmill to 7°. The walking surface is 5 feet long. Approximately how many inches did the trainer raise the end of the treadmill from the floor?

  14. Example 6: The bottom of a handicap ramp is 15 feet from the entrance of a building. If the angle of the ramp is about 4.8°, about how high does the ramp rise off the ground to the nearest inch?

  15. You Try: Use trigonometric rations to find the value of the variables. Round to the nearest hundredth

  16. You Try: Use trigonometric rations to find the value of the variables. Round to the nearest hundredth

  17. *Given 2 sides, you can find an angle measure using trig. Inverse.

  18. Example 5: a) Use a calculator to find the measure of P to the nearest tenth.

  19. Example 5: b) Use a calculator to find the measure of D to the nearest tenth.

  20. Example 6: Solve each right triangle. Round side measures to the nearest hundredth and angle measures to the nearest degree.

  21. Example 6: (Change in Packet) Solve each right triangle. Round side measures to the nearest hundredth and angle measures to the nearest degree. 54

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