Any conic section.
The only polygon that absolutely positively never has any parallel sides is a triangle. Any other shape comprised of four or more straight line segments could have one or more pairs that are parallel.
For a shape to have parallel sides it needs at least 4 sides
no...beacuse a parallelogram has to have parallel sides....a triangle can never have parallel sides
It could be an irregular polygon with 6 or more sides or, if a quadrilateral, it could be a parallelogram.
A 25-sided shape would have no parallel sides !
A rectangle is a shape that has four sides with two parallel lines.
A circle does not have any pairs of parallel sides. In geometry, parallel sides are defined as sides that are always the same distance apart and will never intersect. Since a circle is a curved shape with no straight sides, it does not have any pairs of parallel sides.
If it has four equal sides, then two parallel sides implies two PAIRS of parallel sides. The shape is a rhombus.
It could be a trapezoid
Any polygon with four or more sides can have parallel sides.
It could be an irregular polygon with 6 or more sides or, if a quadrilateral, it could be a parallelogram.