Problem
COM-B1-M04-P005 Edges of a Complete Graph
#5
★☆☆☆☆ Level 1 of 5
How many edges are in a graph with \(6\) vertices where every pair of vertices is connected by an edge?
An edge is a pair of vertices.
Choose \(2\) vertices from \(6\): \(6\cdot5/2=15\).
Link between pairs and graphs.