A parallelogram if the two pairs are mutually congruent but all four sides are not. A rhombus if all four are.
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A parallelogram has two pairs of congruent sides, and the opposite sides are congruent.
A quadrilateral with both pairs of opposite sides congruent is a parallelogram.
Diamond
Two different quadrilaterals have two pairs of parallel sides and have all their angles congruent. They are the square and the rectangle.
2 pairs, the sides opposite each other are congruent to each other