A parallelogram has 2 sets of parallel sides. The opposite sides are equal in length and opposite angles are equal. Examples of parallelograms are squares, rectangles and rhombuses. You can find the perimeter of a parallelogram by doubling the base+side length.
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Two pairs of opposite sides are parallel in a parallelogram
A parallelogram has two pairs of opposite parallel sides (for a total of four sides).
A parallelogram has 2 pairs of opposite parallel sides
2It has one pair more because a parallelogram has two pairs of parallel sides whereas a trapezoid only has one pair of opposite parallel sides of different lengths.
There are many different ways but a defining characteristic is that is has two pairs of parallel sides.