a rhombus
Trapezoid is the quadrilateral which have no parallel sides.
Trapezoid
parallelogram
Any quadrilateral with two sets of parallel sides is called a parallelogram.
A quadrilateral is a polygon with four 'sides' . A parallelogram is a quadrilateral with two sets of parallel sides.
A rectangle.
A trapazoid has only has to have 1 set parallel sides a parallelogram is 2 sets of parallel sides
a square
parallelogram
rhombus
A trapezoid.
Only if it is a trapezoid (US usage) with one set of parallel sides, or a parallelogram with both sets of opposite sides parallel. The term quadrilateral only means that the shape has 4 sides.