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30. From a lighthouse an airplane leaves and flies at an angle of elevation 36° and is now 1,200 meters above the observer. How far (AB) is the airplane from the lighthouse? 0/sin 36 -1200 m

30. From a lighthouse an airplane leaves and flies at an angle of elevation 36° and is now 1,200 meters above the observer. How far (AB) is the airplane from the lighthouse? 0/sin 36 -1200 m

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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30. From a lighthouse an airplane leaves and flies at an angle of elevation 36° and is now 1,200 meters above the observer. How far (AB) is the airplane from the lighthouse? 0/sin 36 -1200 m 31. Using the smaller triangle with 25° angle of elevation and 87 feet distance, how high (h) is the tower? 40° 25° 87 feet 32. What will be the angle of elevation (X) in this figure? angle of depression 30 ft. 33. Which trigonometric function must be use to get the ratio of BC/AC ? B C angle of elevation A 50 ft.
Transcribed Image Text:30. From a lighthouse an airplane leaves and flies at an angle of elevation 36° and is now 1,200 meters above the observer. How far (AB) is the airplane from the lighthouse? 0/sin 36 -1200 m 31. Using the smaller triangle with 25° angle of elevation and 87 feet distance, how high (h) is the tower? 40° 25° 87 feet 32. What will be the angle of elevation (X) in this figure? angle of depression 30 ft. 33. Which trigonometric function must be use to get the ratio of BC/AC ? B C angle of elevation A 50 ft.
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