Polygon.
There is no special name that distinguishes shapes with more than four sides from shapes with four or fewer.
A shape with four or more sides can have two parallel sides.
A pentagon (5-sides), hexagon (6-sides), heptagon (7-sides), and octagon (8-sides) are all examples of shapes with more than four straight sides.
Most shapes will have more than two sides. If the sides are straight lines, the shapes MUST have more than two sides.
Polygons are shapes with 3 or more sides
Any polygon with four or more sides can have a pair of parallel sides. It is also possible to to have non-polygonal shapes - eg a cigar-shape - that has parallel sides.
There is no specific term that distinguished between shapes with more than 11 sides from those with up to 11 sides.
Shapes having less than 4 sides or more than 4 sides are not parallelograms
There is no special name: they are polygons, as are shapes with 3 or 3 million sides.
It is a polygon that has 3 or more sides
They are a rhombus, a parallelogram, a rectangle and a square which are all 4 sided quadrilaterals.
Most triangles, quadrilaterals, and other polygons with five or more sides; most closed shapes with curved sides.Most triangles, quadrilaterals, and other polygons with five or more sides; most closed shapes with curved sides.Most triangles, quadrilaterals, and other polygons with five or more sides; most closed shapes with curved sides.Most triangles, quadrilaterals, and other polygons with five or more sides; most closed shapes with curved sides.