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Find the measure of LA. 1. tan A = 3.0777 _ 2. cos A = 0.0349 _ 3. sin A = 04540._· _ I. . I Practice Solve for each indicated angle measure. 4. ~ Express each Ingonometric ralio as a fraclion and as £21 1. sin A 13 decimal rounded 10 the hundredths place. 7 A ~ 24 B 3. tan A 7. . 3 C 2. cos A 28 ~ Date 5. 38 6. Name 4. sin C 6 5. cos C 6. Ian C t2J Write the word or phrase thal.correclly completes each state me'll. 8.' If you know the diStance 10 a Iree and Ihe heigh I of lhe Iree, what trigonometric <alio can you usc to find the angle of elevation? _ 7. The_. the adj"CeOl leg. _ of an angle is the ratio of the length of the opposite leg to the length of ... _ _ _ _ _ leg to the length of 8. Thc rosine of an angle is the rario of 11,e length of the the hypotenuse. 9. An observer sees a kite al an angle of elevation of 39° The kile is direuly above a tree that is 112 feet from the observer. Find the height of the kite above the ground if the observer is 5 feel tall. Find the srne. cosine. "nd lange'll of each angle. Round your answers to the nearest hundredth. 9. 11° 11. 10. 43° 78° Find.t and y. ]2. 10. Standing on lhe observation deck of a skyscraper an observer looks down and sees a major street intersection. If the angle of depression is 54°, and the street inlersection is J08 m from the base of the bUilding, how tall is the building? The height of the observer is 5 fl. sm.-r-------~-r., ft - '''/54"' DO \\ o0 . ~ , , . \, DO 00 , ~x )' ; : I \\: '.\. ! \' 108 fl IJ. ,~ ),~~ SlIeer 14. Anne wants to know the heIght of" tree which is 64 fI away from her. If the angle Shown is 38°. how tall is the trcc? Intersection " L' " :t 38' 64 f\ 1S. A wheelchair ramp makes an angle of 50 with the horizontal as shown. What IS the length of the ramp? 'R. 5" -c=?---:=:J 12ft