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The angle of elevation of the top of a t...

The angle of elevation of the top of a tower at a distance of 120 m from a point A on the ground is `45^(@)`. If the angle of elevation of the top of a flagstaff fixed at the top of the tower, at A is `60^(@)`, then find the height of the flagstaff. [Use `sqrt(3) = 1.732`.]

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