A planar convex set bounded by a broken line consisting of a finite number of rectilinear segments. The boundary alone is also sometimes called a convex polygon. A convex polygon is the convex hull of a finite set of points and also the intersection of a finite number of closed half-spaces.
Convex polygon. Encyclopedia of Mathematics. URL: http://www.encyclopediaofmath.org/index.php?title=Convex_polygon&oldid=34462