A truncated Octahedron has 36 edges.
Two polyhedrons have 18 edges: truncated tetrahedron and hexagonal prism.
The answer depend on the truncation but assuming it is by a plane parallel to the base, the truncated tetrahedron is like a triangular prism (except that one base is smaller than the other). It, therefore, has 5 faces, 6 vertices and 9 edges.
A tetrahedron has 6 edges.
a truncated cube has 36 edges
A truncated tetrahedron has eight 8 faces: 4 hexagonal faces and 4 triangular faces.
it has 12 vertices
There are 2 sides to a tetrahedron, and six edges.
The base of a tetrahedron has three edges.
It has 8 edges.
A tetrahedron has:4 faces4 vertices6 edges