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9.5 Trigonometric ratios

9.5 Trigonometric ratios. How are trigonometric ratios used to find missing sides of right triangles?. 3 basic trig ratios. Sine (sin) Cosine (cos) Tangent (tan) Sin  Cos  Tan . Just remember Chief…. SOH CAH TOA. ppos i te. angent. ppos i te. ypotenus. osine.

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9.5 Trigonometric ratios

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  1. 9.5 Trigonometric ratios How are trigonometric ratios used to find missing sides of right triangles?

  2. 3 basic trig ratios • Sine (sin) • Cosine (cos) • Tangent (tan) • Sin  • Cos  • Tan 

  3. Just remember Chief… SOH CAH TOA ppos i te angent ppos i te ypotenus osine dj acent ypotenus dj acent ine

  4. Angle of elevation/depression angle of depression angle of elevation ground

  5. ExampleFind the height of the tree You are given the adj side & finding the opp side. tan 48o = h/100 100 tan 48o = h 111.06 = h About 111 ft h Use tangent!! __ __ 48o 100 ft

  6. Example 2000 ft 100ft __ __ ?

  7. One early escalator built in 1896 rose at an angle of 25º. The vertical lift was 7 feet. Estimate the distance a person traveled on this escalator.

  8. When the shuttles’s altitude is about 15.7 miles, its horizontal distance to the runway is about 59 miles. What is its glide angle?

  9. AssignmentTB Pg 563 #37-42Pg 566 #7Pg 571 #38-44

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