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    Planar Graph

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    Prove that the complete graph K5 is nonplanar.

    © BrainMass Inc. brainmass.com December 24, 2021, 4:48 pm ad1c9bdddf

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    Proof. Suppose, to the contrary, that K5 is a planar graph. ...

    Solution Summary

    A K5 graph is proven to be non-planar. Planar and non-planar graphs are analyzed.