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What is a trapezoid? A trapezoid is a quadrilateral with exactly one pair of parallel sides. The following figure is a trapezoid.

It is not for no reason we said exactly 1 pair. If the quadrilateral has more than 1 pair of parallel sides, it is not a trapezoid.

The parallel sides are shown with the two blue lines. As long as the quadrilateral has exactly 1 pair of parallel sides, it is a trapezoid.