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If a complete graph has five vertices, then how many edges are in the graph?

 May 28, 2017

Best Answer 

 #1
avatar+9466 
+2

I've never heard about complete graphs before....but from this Wikipedia page it says that,

 

where " Kn " is the  complete graph and " n " is the number of vertices....

Kn   has   n(n - 1)/2   edges

 

So...

 

K5   has   5(5 - 1)/2   edges

K5   has   10   edges

 

 

 

 

And it looks like this

 May 28, 2017
 #1
avatar+9466 
+2
Best Answer

I've never heard about complete graphs before....but from this Wikipedia page it says that,

 

where " Kn " is the  complete graph and " n " is the number of vertices....

Kn   has   n(n - 1)/2   edges

 

So...

 

K5   has   5(5 - 1)/2   edges

K5   has   10   edges

 

 

 

 

And it looks like this

hectictar May 28, 2017

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