CAT level question in Trigonometry – 02
Questions: From the top of a tower, a bird sees an airplane at an angle of elevation of 30°. The bird sees the reflection of the plane on a river at an angle of depression of 60°. If the distance between the bird and the plane is 300m, find the height at which the plane was flying above the ground level?
(a) 600m
(b) 300m
(c) 900m
(d) 300√3m
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Useless video
It is SSC CGL level question