A Tessellation Featuring Regular Heptagons | RobertLovesPi.net
Covering of plane with densely packed regular heptagon tiles. The... | Download Scientific Diagram
A Tessellation Featuring Regular Heptagons and Triangles, as well as Six- and Four-Pointed Stars | RobertLovesPi.net
Does a heptagon tessellate? | Homework.Study.com
John Carlos Baez on Twitter: "Regular heptagons may be the worst possible convex shape for densely packing the plane - the best anyone has done is fill 89.3% of the plane. See
Heptagonal tiling - Wikipedia
I designed and folded an origami tessellation with regular heptagons : r/math