A graph H=(V,E) has 10 vertices and 12 edges.is it a tree? Give a reason. Justify your reason by staying a related theorem.
2026-03-29 09:09:36.1774775376
How to prove the graph is a tree
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No, if a tree has $v$ vertices, then it has $v-1$ edges. $12 \neq 10-1$, so it is not a tree.