In UK English - A trapezoid
In US English - A trapezium
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It's impossible for a quadrilateral to have no equal sides and have right angles.
A rhombus is a quadrilateral with four equal sides.
In general, a quadrilateral is not regular. Only the square has all its sides equal AND all its angles equal and so can be called regular.
A rhombus is a quadrilateral with 4 equal sides and if the angles are also all equal that that rhombus is a square.
a quadrilateral is a shape with four equal sides.