Hello there. <span> What term best describes the set of all points in a plane for which the sum of the distances to two fixed points equals a certain constant? </span> ellipse
In mathematics, an ellipse<span> is a curve in a plane surrounding two focal points such that the sum of the distances to the two focal points is constant for every point on the curve. As such, it is a generalization of a circle, which is a special type of an </span>ellipse<span>having both focal points at the same location. </span>
