Problema Solution
a lighthouse operator at point P 25 m above sea level sights a sailboat at point S. the angle of depression of the sighting is 10 degrees. how far is the boat from the base of the lighthouse? give your answer to the nearest 10 m.
Answer provided by our tutors
The distance from the base of the lighthouse = 25/tan10 = 142 = 140
So the distance from the base of the lighthouse is 140 m