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Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
Trigonometry applications topic
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Trigonometry applications topic

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A review of trigonometry for General Mathematics students before starting the HSC course.

A review of trigonometry for General Mathematics students before starting the HSC course.

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Transcript

  • 1. TrigonometryApplications
  • 2. Review• Trigonometry is the study of triangles and therelationships between their sides and angles.• Important terms :Hypotenuse, Opposite, Adjacent.• SOH-CAH-TOA• Finding sides and angles in right-angled triangles.• Angles in degrees and minutes.• Angles of elevation and depression.
  • 3. Which side is it?AdjacentOpposite
  • 4. SOH-CAH-TOA• A pnemonic to remember the 3 trigonometricratios:
  • 5. Finding sides and angles1. Which trigonometric ratio?2. Make an equation.3. Solve the equation.
  • 6. Find the…Side marked x38°x
  • 7. Find the…Side marked x29°19 mx
  • 8. Find the…Side marked x32°46cmx
  • 9. Find the…Angle marked 18cm
  • 10. Find the…Angle marked 29 cm12cm
  • 11. Degrees and MinutesGreater accuracy in measuring angles isachieved by measuring to the nearest minute.1° = 60’To enter an angle into the calculator indegrees and minutes use this button:
  • 12. Angle of elevationThe angle between the horizontal and line ofsight when looking upwards to a point.
  • 13. Angle of depressionThe angle between the horizontal and line ofsight when looking downwards to a point.
  • 14. Trig ProblemJed stands 80 m from the base of a tree that is39 metres tall. What is the angle of elevationto the top of the tree to the nearest minute?80 m39 m(Press the angle button)
  • 15. End of Review

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