> you must make an accurate regular pentagon and this is not trivial with ancien... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		KETHERCORTEX on Jan 24, 2024 \| parent \| context \| favorite \| on: Another Roman dodecahedron has been unearthed in E... > you must make an accurate regular pentagon and this is not trivial with ancient geometric methods Does it need anything else besides some kind of protractor and ruler?

yetanotherloser on Jan 24, 2024 [–]

Making a triangle or square or even hexagon with rule and compass is fairly easy. Making a really regular pentagon also only needs rule and compass, but noticeably more knowledge with them. Try it.

https://sciencevsmagic.net/geo/

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact