Simplex

In geometry, a ""simplex"" is the extension of a triangle or tetrahedron to any higher dimension. Mathematicians commonly refer to a simplex in the n-th dimension as a ""n-simplex"". As with a triangle or tetrahedron, an n-simplex has n+1 vertices, all of which are connected by edges. Therefore the net of a simplex is a complete graph. There are many more interesting properties of simplexs

--See Also-- Triangle Tetrahedron