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.
In elementary geometry, a polygon /ËpÉlÉªÉ¡Én/ is a plane figure that is bounded by a finite chain of straight line segments closing in a loop to form a closed chain or circuit.These segments are called its edges or sides, and the points where two edges meet are the polygon's vertices (singular: vertex) or corners.n n-gon is a polygon with n sides. A polygon is a 2-dimensional example of the more general polytope in any number of dimensions. The basic geometrical notion of a polygon has been adapted in various ways to suit particular purposes.