A square
Any polygon with four or more sides can have a pair of parallel sides. It is also possible to to have non-polygonal shapes - eg a cigar-shape - that has parallel sides.
rhombus
Any polygon, other than a triangle, can have one pair of parallel sides.
A polygon with 4 or more sides can have a pair of parallel sides.
A square
Any polygon with four or more sides can have a pair of parallel sides. It is also possible to to have non-polygonal shapes - eg a cigar-shape - that has parallel sides.
trapezoids
rhombus
rectangular
Any polygon, other than a triangle, can have one pair of parallel sides.
A trapezium, or any one of irregular polygons of 5 or more sides.
trapezoidTrapezoid.
You need at least one pair of parallel sides. Most trapezoids have that.
A polygon with 4 or more sides can have a pair of parallel sides.
One pair of parallel sides, It divides in to smaller shapes
The name of the four-sided shape that has only one pair of parallel sides is known as a trapezoid. The other two sides are not parallel to each other. There are many other shapes with more than four sides that have one pair of parallel sides but these typically don't have special names. So assuming the question is only referring to four-sided figures, the answer is a trapezoid.