👉 Encircler in mathematics is a term used to refer to a set of points or regions that are all contained within another set. It represents a closed curve or an area that is completely enclosed by one or more sets of points, and it can be defined as the boundary or outer edge of a polygon. For example, consider a circle with its center at (0, 0) and radius 1 unit. The set of all points inside this circle would be encirclers because
