Question: 1. Draw the seven non isomorphic sub graphs of K3 and the 17 distinct sub graphs of K3.
2. Are the three graphs shown in Figure isomorphic? (Are any two of them isomorphic?) If so, exhibit the isomorphism. If not, find a property that should be preserved by isomorphism for which the graphs differ.
![1230_25.png](https://secure.tutorsglobe.com/CMSImages/1230_25.png)