Parallelograms (including rectangles and squares) and Rhombuses.
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Trapezoids. All other quadrilaterals either have two pairs of parallel sides or none.
They are quadrilaterals which have two pairs of parallel sides.
There are more than 4 other types of quadrilaterals.A trapezoid has only one pair of parallel sides. All other quadrilaterals have no parallel sides or two pairs.
Quadrilaterals are two-dimensional shapes that have four sides. Quadrilaterals that have only one set of parallel sides are called trapezoids.
Squares, rectangles, parallelograms and rhombuses have two parallel sides. The other two are also parallel. A trapezium has only two parallel sides.