There are infinitely many of them so it is not possible to list their names. If the sides are all straight lines, they are collectively called polygons.
They are called polygons.
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.
Nonagons.
Hexagon.
Regular shapes:all sides and angles are the same Irregular shapes: different angle and sides
They are called polygons.
They are called sides or edges.
Shapes with straight sides are called polygons
Shapes with a specific number of sides are referred to as polygons. A shape with three sides is called a triangle, four sides a quadrilateral, five sides a pentagon, six sides a hexagon, seven sides a heptagon, eight sides an octagon, nine sides a nonagon, and ten sides a decagon. Each of these names is derived from Greek or Latin prefixes that denote the number of sides.
Polygonal (2-d) shapes get their (not there) names from the number of sides; polyhedra (3-d) shapes get their names from the number of faces.The names of other shapes: circles, ellipses, torus, cardioid etc have different origins.
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.
You specify shapes by the number of sides (or edges, different name) they have. The suffix -gon at the end of a word show how many sides it has in the words. For example, an octagon has eight sides; so if you see a shape with eight sides, it's an octogon. All shapes are known as polygons, which means it has three or more sides.
They are called heptagons.
They are called hendecagons.
Shapes that only have straight edges are called polygons. Polygons can have various numbers of sides, such as triangles (three sides), quadrilaterals (four sides), pentagons (five sides), and so on. Each type of polygon is classified based on the number of sides it has, and they can be regular (with equal sides and angles) or irregular.
A shape is an object with a specific number of sides. Some examples of shapes include circles, squares, triangles, pentagons, and hexagons.
Nonagons.