It is not possible to name all of them since there are an infinite number of them.
The names of the common polygons by number of sides is as follows:
(1 = line, 2 = angle)
3 = triangle
4 = quadrilateral
5 = pentagon
6 = hexagon
7 = heptagon
8 = octagon
9 = nonagon or enneagon
10 = decagon
11 = undecagon or hendecagon
12 = dodecagon or duodecagon
20 = icosagon
all 2D figures have 1 face.
No, you are thinking about 3d figures
2D figures have surface area, but no volume.
They have sides but 3D figures have edges
2d is 2 dimensional so there is only length and width... edges are only in 3d and 2d figures only have one side...
Squares are 2D figures and cubes are 3D figures Also squares are the faces of a cube
Circles, rectangles, squares, pentagons, etc.
1D figures are important in the real world because if we did not have 1D figures, the we wouldn't be able to make 2D and 3D figures.
ac + 2ad + 2bc + 4bd (ac + 2ad) + (2bc + 4bd) group the figures a(c + 2d) + 2b(c + 2d) remove the common divisors of each set (a + 2b)(c + 2d) take the figures in parentheses as one set, and add the outside figures as the other
Polygons are 2D plane figures. All polygons with 7 sides would be classified as heptagons.
it is all the 2d shapes with pics
2d means 2 dimensional or flat figures. If you are dealing with algebra or graphing, it would mean X and Y coordinates only, not Z.