heptagon
diagram
random
Gnomologia: … 1732 : Fuller, Thomas, M.D. of Queen’s College, Cambridge (archive.org)
schläfli symbol
{7}
sides
7
tags
polygon
geometry
wikipedia
Heptagon (Wikipedia)
In geometry, a heptagon or septagon is a seven-sided polygon or 7-gon.
➕ side
octagon
➖ side
hexagon
