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1. |
A pilot in an aeroplane at an altitude of 200 m observes two points lying on either side of a river. If the angles of depression of the two points be 45° and 60°, then the width of the river is |
A. | (200 + 200/√3) m |
B. | (200 - 200/√3) m |
C. | 400 √3 m |
D. | (400/√3) m |
Answer» C. 400 √3 m | |