2d shapes that do not have equal sides do not usually have special names.
Polygons are 2D plane figures. All polygons with 7 sides would be classified as heptagons.
rectangle
Triangles
Hectogon
the answer is 8
Squares
2D - Nonagon 3D - Nonahedron
isoceles triandle, square
No
Square and rhombus.
in 2d shapes a quadrilateral