Q7 of 25 Page 9

An aeroplane while flying at a height of 3000 m from the ground passes vertically above another aeroplane at an instant when angles of elevation of planes from the same point on the ground are 45° and 60°. Find the vertical distance between the aeroplanes.

Formula Used:



Explanation:



Let P and Q be two aeroplanes where Q is vertically below P and OP = 3000 m.


Let angles be 60° and 45°.


In ΔAOP and ΔAOQ,






PQ = OP – OQ




= 1258.85 m


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