Any polygon with four or more sides can have parallel lines. So also can some irregular shapes.
rhombus
a regular hexagon
kite :)
A square is a 2-dimensional shape. It has four lines, all of the same length. The opposite lines are parallel. All four angles are 90 degrees each.
There are many, the simplest that I can think of is an isosceles trapezoid.
parrelel lines meet
A 2d shape with uncountable lines of symmetry is a circle.
2
any rhombus
In 2D geometry, that is the definition of parallel lines. Two non-intersecting lines are indeed parallel.
A trapezoid has two parallel lines.
A rhombus has parallel lines but no perpendicular lines.