Question: 6. Explain Why all faces in a bipartite planar graph must have degree at least 4 6. Explain why all faces in a bipartite planar

6. Explain why all faces in a bipartite planar graph must have
degree at least 4.

6. Explain Why all faces in a bipartite planar graph must have degree at least 4

6. Explain why all faces in a bipartite planar graph must have degree at least 4.

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