Any shape that is not a triangle may have 2 parallel sides, although regular polygons only have parallel sides when the number of sides is even. For a quadrilateral, a trapezoid(UK trapezium) has 1 set of parallel sides and a parallelogram (either a rhombus, rectangle, or square) has 2 sets of parallel sides.
A trapezoid
If it has four equal sides, then two parallel sides implies two PAIRS of parallel sides. The shape is a rhombus.
Without knowing their arrangement or the angles involved, all you can say is that it is a quadrilateral (4 sides). If the long sides are opposite, parallel, and equal in length -- and if the short sides are opposite, parallel, and equal in length -- you have a parallelogram. If all of the angles of the parallelogram are right angles, you have a rectangle.
in geometry i learned a parallelogram has only 2 pairs of parallel sides each pair of opposite sides is parallel
If the shape (a quadrilateral) has only 2 parallel sides, it is a trapezoid (UK trapezium).A shape with four sides and two sets of parallel sides is a parallelogram (rectangle, square, rhomboid, rhombus) because these figures have four sides and two sets of parallel sides.
A trapezoid
An isosceles trapezoid would seem to fit the given description.
How about a square, rectangle, rhombus or a parallelogram in which all have 2 pairs of opposite parallel sides.
A regular polygon with an even number of sides.
A parallelogram or a rhombus
A parallelogram is such a shape.
parallelogram
trapizoid
A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length, and opposite angles that are equal. Two ways to describe a parallelogram could be as a shape with opposite sides that are both parallel and equal in length, or as a shape with opposite angles that are equal.
For a shape to have parallel sides it needs at least 4 sides
The description given fits that of a rhombus.
triangle