The angle of elevation of the top of a from the two points at a distance of 3m and 12m from the base of the tower and in the same straight line with it are complementary.the height of tower is ?
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6m.
Step-by-step explanation:
let the angles of elevation be ∝ , β
the height of tower = T
tan∝ = T/3
tanβ = T/12
tan∝tanβ = T²/36 = 1
T = 6m
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