parallelsided
Parallelsided is an informal geometric term used to describe a polygon that has at least one pair of parallel sides. It is not a formal classification in Euclidean geometry, but it appears in some educational materials to emphasize the presence of parallelism without assigning the shape to a more specific category.
Because parallelism is the defining feature, a parallelsided polygon can have any number of sides, although
In formal geometry, the term parallelsided is not a substitute for established classifications, but it helps
Usage and etymology: Parallelsided is used descriptively in some textbooks and online resources to highlight the