"A regular tetrahedron (三棱锥), often simply called "THE" tetrahedron, is the Platonic solid with four polyhedron vertices, six polyhedron edges, and four equivalent equilateral triangular faces."
You cannot change the number of vertices, edges, and faces. The only thing you may work with is the edges that are not limited to be straight. However, a tetrhedron (三棱锥) with CURVED edges is not what Aristotle meant.
