Quandaries
and Queries 

Name: Ali Who is asking: Student Level: Secondary Question: 

Hi Ali, Without drawing it explicitly??? Clearly you need 7 points and two of them are joined to all of the others. Think of the graph with them and the (adjacent) point of degree 2 removed. This leaves 4 points with degrees {3,3,3,1} which is easily seen to be impossible if you remove the point of degree 1. Penny 

