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April 24, 2014

Homework Help: math

Posted by Ryan on Tuesday, July 31, 2012 at 11:57pm.

From a lighthouse (270m above the ocean), an observer notices a ship. The lighthouse is setback from the ocean about 60m. To keep the ships safe from an underwater obstacle at this spot, they need to stay at least 1.4km away from shore. To see the ship, the observer must look down through an angle of depression of 3.24 degrees. How close is the ship to hitting the obstacle?

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