7. At a considerable distance away from the base of a cliff, asurveyor founds the angle of elevation. To the top of a cliff tobe 70°. After moving a distance of 100m in the horizontal linecloser to the cliff, the angle became 50º. How high is the cliff?

Answered: Image /qna-images/answer/76caeb3c-f277-45c1-9b28-b216786aa87a.jpg

Answered: 7. At a considerable distance away from…

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter5: Trigonometric Functions: Right Triangle Approach

Section5.CR: Chapter Review

Problem 3CC

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7. At a considerable distance away from the base of a cliff, a surveyor founds the angle of elevation. To the top of a cliff to be 70°. After moving a distance of 100m in the horizontal line closer to the cliff, the angle became 50º. How high is the cliff?