Alexandre B A Villares 🐍 on Nostr: how to make a regular octagon folding paper (cc npub1k94wm…09lz4)

how to make a regular octagon folding paper (cc npub1k94wmkevuankewqz0fjys6k7t02jtllrsydk438ngulhhgldyk7qs09lz4 (npub1k94…9lz4))
https://en.wikipedia.org/wiki/Octagon