oscheneAlbrecht Duerer's #Heptagon
From https://commons.wikimedia.org/wiki/File:Duerer_Underweysung_der_Messung_057.jpg
This shows how it begins. The line from marked 7 is very close to the side of a regular heptagon.
Albrecht Duerer's #Heptagon
From https://commons.wikimedia.org/wiki/File:Duerer_Underweysung_der_Messung_057.jpg
This shows how it begins. The line from marked 7 is very close to the side of a regular heptagon.