Question 13:
As observed from the top of a 75 m high lighthouse from the sea-level, the angles of depression of two ships are 30° and 45°. If one ship is exactly behind the other on the same side of the lighthouse, find the distance between the two ships.
Answer:
Let AB be the lighthouse and the two ships be at point C and D respectively.
Therefore, the distance between the two ships is 75(√3 – 1)m.
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