A civil engineer desires to measure the height of a tower observing a vertical angle at A. He then moves 54 meters further towards the tower at B and observes another vertical angle which is twice that of the first. He again proceed to move further towards the tower, still on the same line at distance of 21 meters. The observed vertical angle of the tower at this point is three times that the first. Determine the height of the tower.
A civil engineer desires to measure the height of a tower observing a vertical angle at A. He then moves 54 meters further towards the tower at B and observes another vertical angle which is twice that of the first. He again proceed to move further towards the tower, still on the same line at distance of 21 meters. The observed vertical angle of the tower at this point is three times that the first. Determine the height of the tower.
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 civil engineer desires to measure the height of a tower
observing a vertical angle at A. He then moves 54 meters
further towards the tower at B and observes another
vertical angle which is twice that of the first. He again
proceed to move further towards the tower, still on the
same line at distance of 21 meters. The observed vertical
angle of the tower at this point is three times that the
first. Determine the height of the tower.
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