It is a square or a rhombus
A quadrilateral
Rhombus or paralellogram
There are infinitely many such shapes. A polygon with 4 or more sides can have two sides that are parallel and they need not be the same length.
An irregular quadrilateral, though it could possibly be a kite if there are two pairs of sides of equal length
A polygon with 4 or more sides can have a pair of parallel sides.
A quadrilateral
A square.
The parallel sides of a polygon are sides that are segments of parallel lines. A polygon need not have any parallel lines. A triangle, for example, is a polygon that cannot have parallel lines.
A square is a regular polygon with two sets of parallel sides. A parallelogram is an irregular polygon with one set of parallel sides. A rhombus is an irregular polygon with two sets of parallel sides. A rectangle is an irregular polygon with two sets of parallel sides. *Note - a regular polygon is a shape in which all sides are equal in length and all angles are equal in measurement.
Rhombus or paralellogram
A regular polygon with an even number of sides.
There are infinitely many such shapes. A polygon with 4 or more sides can have two sides that are parallel and they need not be the same length.
A four-sided polygon with two parallel sides is called a trapezoid (US) or trapezium (UK). It requires that the parallel sides are not equal in length, or they would form a parallelogram. A trapezoid's bases are parallel, but the legs are not.trapezoid
An irregular quadrilateral, though it could possibly be a kite if there are two pairs of sides of equal length
Any polygon with four or more sides can have parallel sides.
A polygon with 4 or more sides can have a pair of parallel sides.
No. A parallelogram, for example, is not a regular polygon. Even a rhombus, with parallel sides of equal lengths is not.