  It is well-known that the Euclidean plane has a standard 6-regular geodesic
triangulation , and the unit sphere has a 5-regular geodesic triangulation,
which is induced from the regular Dodecahedron, and the hyperbolic plane has an
n-regular geodesic triangulation for any n > 6. Here we constructed a 6-regular
geodesic triangulation of the hyperbolic plane.
