trapezoids (parallel-sided quadrilaterals)

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Scope note
In North America, "trapezoids" are quadrilateral figures having one pair of parallel and one pair of nonparallel sides. In Britain and certain other places, these figures are called a "trapeziums." "Trapezium" has a different meaning in North America, referring to figures having no parallel sides.
trapezoids
Accepted term: 18-Nov-2024