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As observed from the top of a 75 m high light house above the sea level, the angles of depression of two ships are 30° and 45°

respectively. If one ship is exactly behind the other on the same side of the light house and in the same straight line, find the distance between the two ships. (use √3 = 1.732)

This question is exactly same as

Ex 9.1, 13 of Chapter 9 Class 10in the NCERT Book.Please check the answer and video here

In the link above, the answer is

Distance = 75 (√3 – 1)

Putting√3= 1.732Distance = 75 (1.732 – 1)

Distance = 75 × 0.732

Distance = 54.9 m