Height and DistanceHard
Question
The upper 
th portion of a vertical pole subtends an angle tan-1 
at point in the horizontal plane through its foot and at a distance 40 m from the foot. A possible height of the vertical pole is
th portion of a vertical pole subtends an angle tan-1 at point in the horizontal plane through its foot and at a distance 40 m from the foot. A possible height of the vertical pole isOptions
A.20 m
B.40 m
C.60 m
D.80 m
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