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JEE Main 2019 Mathematics question

MathematicsSolution of TrianglesJEE Main 2019

Not in JEE syllabus

The angle of elevation of the top of a vertical tower standing on a horizontal plane is observed to be 45º from a point A on the plane. Let B be the point 30 m vertically above the point A. If the angle of elevation of the top of the tower from B be 30º, then the distance (in m) of the foot of the tower from the point A is:

Answer: (C)

Solution

TOPIC NOT IN SYLLABUS: Heights and Distances. h = x and ⇒ .

Question ID VK-010824