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

Guest May 28, 2017

#1**+2 **

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

where " K_{n} " is the complete graph and " n " is the number of vertices....

K_{n} has n(n - 1)/2 edges

So...

K_{5} has 5(5 - 1)/2 edges

K_{5} has 10 edges

And it looks like this

hectictar
May 28, 2017

#1**+2 **

Best Answer

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

where " K_{n} " is the complete graph and " n " is the number of vertices....

K_{n} has n(n - 1)/2 edges

So...

K_{5} has 5(5 - 1)/2 edges

K_{5} has 10 edges

And it looks like this

hectictar
May 28, 2017