2.3 The Sine Ratio

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2.3 The Sine Ratio

  1. 1. MA20S October 09, 2013 The Sine Ratio B C A 1
  2. 2. MA20S October 09, 2013 1. Finding the sine ratio Use ∆ABC to find sinA and sinB 2
  3. 3. MA20S October 09, 2013 2. Finding a missing side Find the missing side. 3
  4. 4. MA20S October 09, 2013 2. Finding a missing side Find d. F 19° D 12 E 4
  5. 5. MA20S October 09, 2013 2. Finding a missing side Find the missing side. 5
  6. 6. MA20S October 09, 2013 6
  7. 7. MA20S October 09, 2013 B C A 7
  8. 8. MA20S October 09, 2013 2. Finding the missing angle Find the missing angle. 8
  9. 9. MA20S October 09, 2013 2. Finding the missing angle Find the missing angle. 9
  10. 10. MA20S October 09, 2013 A fire is sighted from a fire tower at an angle of depression of 2°. If the fire tower has a height of 125 feet, how far is the fire from the base of the tower? Round to the nearest foot. 10

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