1.

If the angle of elevation of the top of a chimney from a point on the horizontal plane passing through the foot of the chimney is `60^(@)` and the angle of elevation from another point on the same plane at a distance of 24 metres away from the first point is `30^(@)`. Calculate the height of the chimney. `[sqrt(3)= 1.732`(approx). ]

Answer» `20*784` metres


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