Similar Vectors Construction Geodesic Spheres Recursive From Tetrahedron 23 3 12 Net Construction Geodesic Spheres Recursive From Tetrahedron 6 2 2 Net Construction Geodesic Spheres Recursive From Tetrahedron 9 2 4 Construction Geodesic Spheres Recursive From Tetrahedron 4 2 1 Construction Geodesic Spheres Recursive From Tetrahedron 6 2 2 Cone 1 Enveloped Tetrahedron 4 2 1 Cone 2 Enveloped Tetrahedron Construction 6 2 2 Construction Geodesic Spheres Recursive From Tetrahedron 4 2 1 Cone 2 Enveloped Tetrahedron 4 2 1 Construction Geodesic Spheres Recursive From Tetrahedron 4 2 1 Cone 3 Enveloped Tetrahedron Construction 6 2 2 Cone 3 Enveloped Tetrahedron 6 2 2