Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Question
From the deck of a boat, the angle of elevation of the top of an offshore oil rig is found to be 31°30'. The top of the oil rig is
127 meters above the level of the platform on which it stands.
Assume that the head of the person doing the sighting is level
with the base of the oil rig. What is the distance between the
base of the oil rig and the boat?
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