A radio antenna, 20 ft high is located on top of a man-made platform.  A man situated on the ground at a fixed distance from the base of the platform looks at the top and bottom of the antenna at angles of elevation 75o and 60o respectively.  How high is the top of the antenna from the ground in feet?

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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A radio antenna, 20 ft high is located on top of a man-made platform.  A man situated on the ground at a fixed distance from the base of the platform looks at the top and bottom of the antenna at angles of elevation 75o and 60o respectively.  How high is the top of the antenna from the ground in feet?

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