Question: A bridge underpass in the shape ot an elliptical arch, that is, nalt of an ellipse, is 50 feet wide and 15 teet nigh.


A bridge underpass in the shape ot an elliptical arch, that is, nalt of an ellipse, is 50 feet wide and 15 teet nigh. An eight toot wide rectangular truck is to drive (safely) underneath. How nign can it be? h
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