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An underpass bridge is in the shape of a semi-ellipse. It is 400 metres long and has a maximum depth of 10 metres at the middle point. The depth of the bridge at a point which is at a distance of 80 metres from one end is |
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Answer» An underpass bridge is in the shape of a semi-ellipse. It is 400 metres long and has a maximum depth of 10 metres at the middle point. The depth of the bridge at a point which is at a distance of 80 metres from one end is |
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