If a straight line is given, and its copy is created and translated (for conveniently choosen amount), we get a square. If the analogous thing is done with a square, we get a cube. Further, we get a hypercube.
But what about triangle instead of square? What happens if we do same process starting from triangle? What are properties and names for such geometric bodies?
Clarification note: I am not talking about adding a vertex in higher dimension, but translating the whole body. In such scheme, a tetrahedron is not 3-dimensional extension of a triangle, for example.
The same question for a tetrahedron as a starting point.