Isn’t that exactly the same method? (Still a useful link, though, as it’s a great writeup from a slightly different perspective) Edit to add: doh, you’re righ

Isn’t that exactly the same method? (Still a useful link, though, as it’s a great writeup from a slightly different perspective) Edit to add: doh, you’re right! I was too quick on the draw. Cube versus octahedron.