A heptagon in Euclidean Room is unable to deliver uniform tilings along with other polygons, such as the common pentagon. Having said that, it is one of fourteen polygons that may fill a plane-vertex tiling, in its case only together with a regular triangle and a forty two-sided polygon (3. https://andydbsvg.blog5.net/85841737/the-5-second-trick-for-7-day-pill-organizers