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Two poles, AB of length two metres and CD of length twenty metres are erected vertically with bases at B and D. The two poles are at a distance not...

Two poles, AB of length two metres and CD of length twenty metres
are erected vertically with bases at B and D. The two poles
are at a distance not less than twenty metres. It is observed that
tanACB = 2/77. The distance between the two poles is
(A) 72m (B) 68m (C) 24m (D) 24.27m

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