Question

As observed from the top of a light house 100 m. above the water level, the angles of
depression of two ships are 30 and 45°. If one ship is to the north and the other to the
east of the light house, find the distance between the two ships.​

Answer 1

Answer:

As observed from the top of a light house, 100 m above sea level, the angle of depression of a ship, sailing directly towards it, changes from 30∘to40∘. Determine the distance travelled by the ship during the period of observation.