A scaled drawing (blueprint)
map
If you can hold it, it's three dimensional. But things on a screen, say a tv show, look three dimensional but aren't. Those are two dimensional.
Polyhedron. It's any three-dimensional shape made up of flat faces, sharp edges (where two faces meet), and points (where three faces meet).
The distance between two objects may be distorted.
Geographic Map
A projection is a 2 dimensional representation of a solid figure. See related link.
Plane figure
three
Two dimensional object is a plane figure where as three dimensional object is solid (space) figure.
The net of a cube
a rectangle or square
Since a frustum is a portion of a solid, three-dimensional figure, and a rectangle is a plane, two-dimensional figure, there can be no such thing as the frustum of a rectangle.
A net.A net.A net.A net.
A solid is a 3-D object in which you can see all of the faces, edges, and vertices. A two dimensional figure is on paper and you cannot hold it in your hands.
Solids have three dimensions.Two-dimensional figures have length and width, and you can use these to calculate the area.Three-dimensional figures (i.e., solids) have length, width, and depth, and you can use these to calculate the volume.
A triangle is not a polyhedron. A triangle is a two-dimensional figure, and a polyhedron is a three-dimensional solid. An example of a triangular-shaped polyhedron is a pyramid.
A square is a two-dimensional figure.