The angles of elevation of an aeroplane flying vertically above the gr – McqOptions

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1.	The angles of elevation of an aeroplane flying vertically above the ground, as observed from the two consecutive stones, 1 km apart; are 45 and 60 aeroplane from the ground is :
A.	(
B.	+ 1) km.
C.	(
D.	+ 3) km.
Answer» E.

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