That is called a trapezoid, or trapezium.
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A trapezium.
A quadrilateral that has only one pair of parallel sides (the other pair not parallel) is a trapezium.
It is a trapezoid
rhombus
A rectangle is a quadrilateral (4 sides) and has all right angles and 2 pairs of parallel sides. A trapezoid is also a quadrilateral, but has only 1 pair of parallel sides.