An Observer in a Lighthouse a = 340 Feet Above

Multiple Choice

An observer in a lighthouse a = 340 feet above sea level observes two ships directly offshore. The angles of depression to the ships are 4º and 6.5º (see figure) .How far apart are the ships? Round your answer to one decimal place.
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A) 1878.1 ft
B) 1879.1 ft
C) 1880.1 ft
D) 1881.1 ft
E) 1882.1 ft