They are called Enneahedrons or nonahedrons.
Nonagons.
Hexagon.
There is no special name that distinguishes shapes with more than four sides from shapes with four or fewer.
A quadrilateral.
They are called Enneahedrons or nonahedrons.
They are called sides or edges.
Shapes with straight sides are called polygons
Nonagons.
They are called heptagons.
They are called hendecagons.
Hexagon.
a triangle
2D - Nonagon 3D - Nonahedron
There is no special name that distinguishes shapes with more than four sides from shapes with four or fewer.
A quadrilateral.
quadrangles No it quadrilaterals