Question: A road passes through a tunnel with a semielliptical cross section 64 ft wide and 18 ft high at the center. What is the height

A road passes through a tunnel with a semielliptical cross section 64 ft wide and 18 ft high at the center. What is the height of the tallest vehicle that can pass through the tunnel at a point 22 ft from the center? See Fig. 21.67.

Fig. 21.67 18 ft 22 ft 64 ft

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