It may have none.
A trapezium (US) has no parallel sides.
A trapezoid (US, known elsewhere as a trapezium) has one side of parallel sides.
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A Trapezium have 2 equal angles.
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It could have:no angles the same ortwo angles the same ortwo pairs of angles which are the same.
Base angles are equal and so that's 2 pairs of equal angles
A rectangle has 4 right angles.