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Terms of Endearment
Solving Right Triangles: 9.6
What does that mean?
• Solving a right triangle means to find
  the 6 parts…the size of the 3 angles
  and the 3 sides
Calculator 101
• When you want to know the angle,
  you must hit the 2nd button on your
  calculator to get to sin-1, cos-1, or tan-1
• This allows you to work backwards
  from the trig ratio to the angle
  measure.
How do you decide which function to use?
• Look at the two sides given to you…
  if you have no hypotenuse, the only
  function that doesn’t use the
  hypotenuse is tangent
• If you don’t have the opposite side,
  cosine doesn’t need it
• If you don’t have the adjacent side,
  sine doesn’t need it

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9.6 terms

  • 1. Terms of Endearment Solving Right Triangles: 9.6
  • 2. What does that mean? • Solving a right triangle means to find the 6 parts…the size of the 3 angles and the 3 sides
  • 3. Calculator 101 • When you want to know the angle, you must hit the 2nd button on your calculator to get to sin-1, cos-1, or tan-1 • This allows you to work backwards from the trig ratio to the angle measure.
  • 4. How do you decide which function to use? • Look at the two sides given to you… if you have no hypotenuse, the only function that doesn’t use the hypotenuse is tangent • If you don’t have the opposite side, cosine doesn’t need it • If you don’t have the adjacent side, sine doesn’t need it