OMTEX CLASSES: A girl standing on a lighthouse build on a cliff near the seashore, observes two boats due East of the lighthouse. The angles of depression of the two boats are 30 degree and 60 degree. The distance between the boats is 300 m. Find the distance of the top of the lighthouse from the sea level.

A girl standing on a lighthouse build on a cliff near the seashore, observes two boats due East of the lighthouse. The angles of depression of the two boats are 30 degree and 60 degree. The distance between the boats is 300 m. Find the distance of the top of the lighthouse from the sea level.