In the US it's known as a trapezoid in the UK it's known as a trapezium but they are both quadrilaterals.
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It could be:quadrilateral ortrapeziumtrapezoidisosceles trapezoid
quadrilateral , trapezoid ,polygon ,not a parallelogram
ANSWER: A parallelogram (It can also be called a trapezoid) ... but a trapezoid is not a parallelogram!
quadrilateral
It has 2 classifications which are a trapezoid and an isosceles trapezoid