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The angle of elevation of the top of a vertical tower standing on a horizontal plane is observed to be 45∘ 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 30∘, then the distance (in m) of the foot of the tower from the point A is : |
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Answer» The angle of elevation of the top of a vertical tower standing on a horizontal plane is observed to be 45∘ 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 30∘, then the distance (in m) of the foot of the tower from the point A is : |
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