A boat is heading towards a lighthouse, whose beacon-light is 107 feet above the water. From point A, the boat's crew measures the angle of elevation to the beacon, 6°, before they draw closer. They measure the angle of elevation a second time from point B at some later time to be 18°. Find the distance from point A to point B. Round your answer to the nearest foot if necessary.
A boat is heading towards a lighthouse, whose beacon-light is 107 feet above the water. From point A, the boat's crew measures the angle of elevation to the beacon, 6°, before they draw closer. They measure the angle of elevation a second time from point B at some later time to be 18°. Find the distance from point A to point B. Round your answer to the nearest foot if necessary.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 3E
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