A trapezoid is a 4 sided quadrilateral that has only one pair of opposite parallel sides of different lengths.
rhombus
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.
No. Parallelograms have only 4 sides with 2 sets of parallel sides: they include squares, rectangles, and rhombuses (rhombi, diamond shapes). Because opposite angles are equal, each pair of parallel sides is equal in length. (For squares and "equilateral rhombi" all four sides are equal in length.)
It is a closed four-sided shape with one pair of parallel sides.
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.
A trapezoid is a four-sided figure (or "quadrilateral") with only one pair of parallel sides.
A trapezoid is a 4 sided quadrilateral that has only one pair of opposite parallel sides of different lengths.
A four-sided shape is a quadrilateral. With only one pair of parallel sides, it would be called a trapezoid (UK trapezium).
trapezoids
rhombus
A square
rectangular
A trapezoid.
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.
A trapezoid is a four-sided figure with only one pair of parallel sides. A square will always have two pairs of parallel sides.