Table of polyhedron dihedral angles
The dihedral angles for the edge-transitive polyhedra are: == References == Coxeter, Regular Polytopes (1963), Macmillan Company Regular Polytopes, (3rd edition, 1973), Dover edition, ISBN 0-486-61480-8 (Table I: Regular Polytopes, (i) The nine regular polyhedra {p,q} in ordinary space) Williams, Robert (1979). The Geometrical Foundation of Natural Structure: A Source Book of Design.
Source: Wikipedia — Table of polyhedron dihedral angles (CC BY-SA 4.0)