Please show how to solve the following.
How many verticies are there in a tree with 15 edges?
How many edges are there in a tree with 21 verticies?
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Please show how to solve the following.
How many verticies are there in a tree with 15 edges?
How many edges are there in a tree with 21 verticies?
There is a standard theorem: A connected graph with n vertices is a tree if and only if it has n-1 edges.