A heptagon in Euclidean space is unable to create uniform tilings together with other polygons, like the common pentagon. Having said that, it is one of fourteen polygons that could fill a aircraft-vertex tiling, in its situation only together with a regular triangle plus a forty two-sided polygon (3. A https://jeffreyfmojr.blogscribble.com/37965063/7-day-pill-organizers-fundamentals-explained