Q6 of 28 Page 93

The tops of two pillars whose heights are 20 m and 14 m are joined by a wire. If the wire makes an angle of 30° with the horizontal line, then the length of the wire is


Let AD is Pillar 1 and BC is Pillar 2. Angle of depression is 30o from D top of the Pillar1.


Wire length is DC = L.


AE = BC (ABCE is a rectangle and rectangle’s opposite sides are equal)


∠DCE = ∠30o







L = 2 × 6


L = 12m

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