Answer the situational problem involving ellipse and hyperbola

Question

The arch of a bridge is a semi ellipse with a horizontal major axis. The span is 30ft and the top of the arch is 10ft above the major axis. The roadway is horizontal and is 2ft above the top of the arch. Find the vertical distance from the roadway to the arch at 5 foot intervals

Answer 1

The roadway is 2 feet above the arch.

THe arch is 10 feet.

That makes 12, from the roadway to the major axis.

2*5 +2 = 12