<x (G) n If G is an n-vertex r-regular graph, then show that 1+r 2

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Kot G be a n verher amd n n hota, Now oue -neighbons romG. So in this step t)verhices. Sn the hex step simi lanby So the poro edges (G) sum of vorhees () Total mo of 2xdagres ktaloo zid P2olnt 2 2 NOAP Hence 2 6ovov?

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<x (G) n If G is an n-vertex r-regular graph, then show that 1+r 2

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<x (G) n If G is an n-vertex r-regular graph, then show that 1+r 2

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