Exercise · ZW-TREE-002 · ★☆☆ Basic
A tree has 15 edges. How many vertices does it have?
Choose one option.
Show answer
- D. 16
Explanation
Since \(|E|=|V|-1\), we get \(|V|=15+1=16\).
Review the concept: Tree
A tree \(T=(V,E)\) is a connected graph that contains no cycles.
\[|E|=|V|-1\]
More practice problems: tree
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- ZW-TREE-007 How many different trees are there on labeled vertices 1,2,3,4?
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- ZW-TREE-009 An edge is added to a tree between two vertices that were not adjacent. The result: