A heptagon in Euclidean Area is unable to produce uniform tilings together with other polygons, similar to the regular pentagon. Having said that, it is among fourteen polygons that will fill a aircraft-vertex tiling, in its case only together with a regular triangle and also a forty two-sided polygon (3. https://non-slip-slippers-for-eld05229.blogdiloz.com/36572408/not-known-facts-about-7-day-pill-organizers