Geometry Polygon

 02 July 14:14   A Polygon is a two-dimensional figure, acceptation all of the curve in the amount are independent aural one . They are classified by the amount of angles, which is aswell the amount of sides.

    One key point to agenda is that a polygon haveto accept at atomic three sides. Normally, three to ten sided abstracts are referred to by their names (below), while abstracts with eleven or added abandon is an n-gon, area n is the amount of sides. Appropriately a forty-sided polygon is alleged a 40-gon.

     A polygon with three angles and sides.

     A polygon with four angles and sides.

     A polygon with 5 angles and sides.

     A polygon with six angles and sides.

     A polygon with seven angles and sides.

     A polygon with eight angles and sides.

     A polygon with nine angles and sides.

     A polygon with ten angles and sides.

    For a account of n-gon names, go to [http://mathworld.wolfram.com/Polygon.html] and annal to the basal of the page.

    Polygons are aswell classified as arched or concave. A arched polygon has autogenous angles beneath than 180 degrees, appropriately all triangles are convex. If a polygon has at atomic one centralized bend greater than 180 degrees, then it is concave. An simple way to acquaint if a polygon is biconcave is if one ancillary can be continued and crosses the autogenous of the polygon. Biconcave polygons can be disconnected into several arched polygons by cartoon diagonals. Approved polygons are polygons in which all abandon and angles are congruent.