rhombus
A rectangle.
A shape with parallel sides but no right angles is called a parallelogram
A regular decagon would have five sets or parallel lines.
parallelogram
rectangle
An Octogon
A square.
rhombus
There can be no such shape.
A square or rectangle has two sets of parallel lines. Stop signs technically have 4 short sets o parallel lines. Hexagon could have 3 sets, etc. All of which are polygons, though not all polygons have parallel lines.
a square
That is a parallelogram; it could also be called a diamond shape.
The rhombus.
a regular hexagon
a rectangle is a shape that has two sets of parallel lines a trapezoid only has to have one set of parallel lines
kite :)