A heptagon in Euclidean space is not able to create uniform tilings together with other polygons, such as standard pentagon. Even so, it is one of fourteen polygons that may fill a plane-vertex tiling, in its case only along with a daily triangle and a forty two-sided polygon (three. In https://beckettjnkfa.sasugawiki.com/7412653/helping_the_others_realize_the_advantages_of_7_day_pill_organizers