Regular polygons with even sides if there are 6 or more of them; selected irregular polygons with seven or more odd numbers of sides.
Infinitely many. Every regular polygon with 2n sides has n pairs of parallel sides. Then there are irregular polygons which can have parallel sides. And there are also irregular shapes which have parallel sides.
A rectangle, and selected irregular polygons of 5 or more sides. Also, all regular polygons on 4n sides where n is an integer.
Yes. A triangle is a type of polygon and it has NO parallel sides!!!!!!!
Infinitely many. Polygons with 6 or more sides can have 3 pairs of parallel lines. Polygons with 7 or more sides can have a set of three parallel lines.
All regular polygons with an even number of sides. Irregular polygons with an odd number of sides can have parallel sides. There are also non polygonal shapes that can have parallel sides.
A regular octagon and selected polygons of 9 or more sides.
Regular polygons with even sides if there are 6 or more of them; selected irregular polygons with seven or more odd numbers of sides.
Infinitely many. Every regular polygon with 2n sides has n pairs of parallel sides. Then there are irregular polygons which can have parallel sides. And there are also irregular shapes which have parallel sides.
All triangles have no pairs of parallel lines.Any regular polygon with an oddnumber of sides (regular pentagons, heptagons, nonagons, etc) also have no parallel lines.Most irregular polygons will have no parallel sides, either.
Regular polygons whose number of sides are not even will not have any parallel sides, e.g. triangle, pentagon, heptagon.Irregular polygons of any number of sides may have no parallel sides (e.g. an irregular quadrilateral, known in the US as a trapezium).
regular polygons are the ones that all sides are equal
A rectangle, and selected irregular polygons of 5 or more sides. Also, all regular polygons on 4n sides where n is an integer.
Yes. A triangle is a type of polygon and it has NO parallel sides!!!!!!!
Infinitely many. Polygons with 6 or more sides can have 3 pairs of parallel lines. Polygons with 7 or more sides can have a set of three parallel lines.
the Square and the ParallelogramIf there can be more sides then an y of the regular polygons with an even number of sides fill the bill: regular hexagon, octagon, decagon...
That could be numerous polygons: a square, a regular hexagon, a regular octagon, a regular dodecagon ... Any regular polygon with an even number of sides could be your answer.