4. ![]() r2 = 1 Trivial. (regular tetrahedron) | 5. ![]() r2 = 12/7 = 1.714+ Found by David Cantrell in March 2009. (3-fold rotational symmetry) | 6. ![]() r2 = 2 Found by David Cantrell in March 2009. (regular octahedron) |
7. ![]() r2 = 2.293+ Found by David Cantrell in March 2009. (3-fold rotational symmetry) | 8. ![]() r2 = 1 + √2 = 2.414+ Found by David Cantrell in March 2009. (square antiprism) | 9. ![]() r2 = (9 + √129) / 8 = 2.544+ Found by David Cantrell in March 2009. (3-fold rotational symmetry) |
10. ![]() r2 = 3.101+ Found by David Cantrell in March 2009. (4-fold rotational symmetry) | 11. ![]() r2 = 3.384+ Found by David Cantrell in March 2009. (3-fold rotational symmetry) | 12. ![]() r2 = (5 + √5)/2 = 3.618+ Found by David Cantrell in March 2009. (regular icosahedron) |
13. ![]() r2 = 3.947+ Found by David Cantrell in March 2009. (asymmetric) | 14. ![]() r2 = 4.168+ Found by David Cantrell in March 2009. (asymmetric) | 15. ![]() r2 = 4.398+ Found by David Cantrell in March 2009. |
16. ![]() r2 = 4.553+ Found by David Cantrell in March 2009. (2-fold rotational symmetry) | 17. ![]() r2 = 4.771+ Found by David Cantrell in March 2009. (5-fold rotational symmetry) | 18. ![]() r2 = 5.047+ Found by David Cantrell in March 2009. (5-fold rotational symmetry) |
19. ![]() r2 = 5.409+ Found by David Cantrell in March 2009. (4-fold rotational symmetry) | 20. ![]() r2 = 5.799+ Found by David Cantrell in March 2009. (asymmetric) | 21. ![]() r2 = 5.985+ Found by David Cantrell in March 2009. (2-fold rotational symmetry) |