1. A semielliptical archway is formed over the entrance to an estate. The arch is set on pillars that are 10 feet apart and has a height (atop the pillars) of 4 feet (see figure). Describe the location of the foci.

2. You are building a wading pool that is in the shape of an ellipse. An equation for the elliptical shape of the pool, measured in feet, is x2 / 324 + y2 / 196 = 1 Find the longest distance across the pool, the shortest distance, and the distance between the foci.

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4 ft -10 ft -