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8.2

8.2. Trigonometric Ratios. Quick Review:. 25. 7. 6. 9. x. 45 ⁰. 10. 60 ⁰. ?. 14. x. 10. 42 ⁰. What ways can we solve right triangles?. For the following right triangle:. B. A. C. Three trigonometric Ratios – can you find these buttons on your calculator????. Sine (“sin”)

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8.2

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  1. 8.2 Trigonometric Ratios

  2. Quick Review: 25 7 6 9 x 45⁰ 10 60⁰ ? 14 x 10 42⁰ What ways can we solve right triangles?

  3. Forthe following right triangle: B A C

  4. Three trigonometric Ratios –can you find these buttons on your calculator???? • Sine (“sin”) • Cosine (“cos”) • Tangent (“tan”)

  5. SOH-CAH-TOA • Acronym that may help you remember the ratios

  6. Find the sin, cos, and tan of the givenangle. sin G = cos G = tan G = sin J = cos J = tan J =

  7. y 70° 9 x Find the value of each variable:

  8. Angle of Elevation & Depression • Angle of Depression: • Angle from a horizontal line DOWN • Angle of Elevation: • Angle from a horizontal line UP

  9. Example- Now we can solve! • The angle of elevation from the base to the top of a waterslide is about 13°. The slide extends horizontally about 58.2 m. Estimate the height h of the slide.

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