Edge Length and Volume of Two-compounds

Octahedron and Its Compound Octahedron and Its Compound
Truncated Tetrahedron and Its Compound Truncated Tetrahedron and Its Compound
Cuboctahedron and Its Compound Cuboctahedron and Its Compound
Truncated Cube and Its Compound Truncated Cube and Its Compound
 Truncated Octahedron and Its Compound Truncated Octahedronand and Its Compound
Icosidodecahedron and Its Compound Icosidodecahedron and Its Compound
Truncated Dodecahedron and Its Compound Truncated Dodecahedron and Its Compound
Truncated Icosahedron and Its Compound Truncated Icosahedron and Its Compound