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[" A bridge is in the shape of a semi-el...

[" A bridge is in the shape of a semi-ellipse.It is "400" meters long and has a maximum height of "10],[" meters at the middle point.The height of the bridge at a point distant "80" meters from one end is "],[[" (A) "4" meters "," X "" 3) "2" meters "," (e) "8" meters "," (D) "sqrt(91)" meters "]]

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