Size of Graph/Examples/Order 3 Graphs

Theorem

Let $G$ be a simple graph of order $3$.

Then it is possible for $G$ to have a size of $0$, $1$, $2$ or $3$.

Examples of each are presented below:

Sources

• 1977: Gary Chartrand: Introductory Graph Theory ... (previous) ... (next): Chapter $1$: Mathematical Models: $\S 1.3$: Graphs: Problem $17$