From an aeroplane just over a river, the angle of depression of two pa – McqOptions

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1.	From an aeroplane just over a river, the angle of depression of two palm trees on the opposite bank of the river are found to be 60 and 30 respectively. If the breadth of the river is 400 metres, then the height of the aeroplane above the river at that instant is (Assume 3 = 1.732)
A.	173.2 metres
B.	346.4 metres
C.	519.6 metres
D.	692.8 metres
Answer» B. 346.4 metres

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