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- PuzzlingLv 72 年前
You are actually asking about the projection of a 3D *polyhedron* onto a plane. The resulting shape is therefore a 2D representation of that 3D polyhedron.
You can draw a two-point or three-point perspective projection, an isometric projection, an orthographic projection, etc. But in all cases the drawing on the flat plane (paper) is just a way in 2D to represent the original 3D object.
- TomVLv 72 年前
I don't know what "2d 3d polygon" or "3d 2d polygon" means, but what you have is a 2D representation or mapping of a 3D polygon.
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