WAGER
An observer in a lighthouse 150 feet above sea level measures the angle of depression to a sailboat to be 3.5 degrees . Ten minutes later, the observes measures the angle of depression to be 6.2 . To the nearest foot, how far did the boat travel toward the lighthouse?
tan = opp/adj
distance = height /tan
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initial distance = 150/tan(3.5)
initial distance = 2452.48
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final distance = 150/tan(6.2)
final distance = 1380.77
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Traveled = initial - final
Traveled = 1071.71 feet
1071.71 feet!