Drag to roll the whole chain. Six shapes on one structural line, drawn at a common edge length — the real relative sizes. Edge cages, double-sided glued faces, vertices as dots.
Descartes: every convex solid's angular defects sum to exactly 720° — two full turns. The number of steps (vertices) to get there changes; the total never does.
| shape | V | E | F | steps | defect |
|---|