the.com/octagon
the shape that means stop on the road and brawl in the cage
means A flat shape with eight straight sides and eight angles.
from From Greek 'oktagonon,' built from 'okto' (eight) and 'gonia' (angle, corner) — the same '-gon' that runs through pentagon, hexagon, and polygon, all named for their corners rather than their sides. 'Gonia' is a cousin of 'gony,' the knee, the body's own bent angle.
stop signsEight sides so drivers recognize it even snow-covered
fighting cageUFC trademarked the eight-sided Octagon in 2001
angle sumInterior angles total exactly 1080 degrees
islamic artSymbolizes the transition from square earth to circular heaven
truncated squareSlice four corners off a square, octagon appears