Graph Theory Lessons

Answers to Lesson 22

  1. The dual of the circuit C2 is the complete graph K2.
  2. The dual of the wheel Wn is the wheel Wn. We say that Wn is self dual.
  3. The duals of the platonic graphs are as follows:

    Graph Dual Graph
    cube octahedron
    tetrahedron tetrahedron
    octahedron cube
    icosahedron dodecahedron
    dodecahedron icosahedron


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