Dunkirk - Student Encyclopedia (Ages 11 and up) An important commercial seaport, Dunkirk lies in the extreme north of France on the Strait of Dover. In the evacuation of Dunkirk, one of the great actions of World War II, the town was demolished, but much of it had been rebuilt by 1953.
A line segment is a part of a line that is bounded by two distinct end points and contains every point on the line between its end points. Depending on how the line segment is defined, either of the two end points may or may not be part of the line segment.
Play a Rally Game on Polygon Names. In geometry a polygon is traditionally a plane figure that is bounded by a closed path or circuit, composed of a finite sequence of straight line segments (i.e., by a closed polygonal chain). These segments are called its edges or sides, and the points where two edges meet are the polygon's vertices or corners.