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19. An observer 9 m horizontally away from a tree observes its angle of elevation to be only half as much as the angle of elevation of the same tree when he moves 5 m nearer towards the tree. How high is the tree? 3m O 4m 6m 2m O 5m

19. An observer 9 m horizontally away from a tree observes its angle of elevation to be only half as much as the angle of elevation of the same tree when he moves 5 m nearer towards the tree. How high is the tree? 3m O 4m 6m 2m O 5m

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 48E
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19. An observer 9 m horizontally away from a tree observes its angle of elevation to be only half as much as the angle of elevation of the same tree when he moves 5 m nearer towards the tree. How high is the tree? 3m O 4m 6m 2m 5m
Transcribed Image Text:19. An observer 9 m horizontally away from a tree observes its angle of elevation to be only half as much as the angle of elevation of the same tree when he moves 5 m nearer towards the tree. How high is the tree? 3m O 4m 6m 2m 5m
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