An illustration of the circle packing theorem on the planar graph of K<sub>5</sub> (the complete graph on five vertices) minus one edge. The positions and colors of the vertices in the top graph and the circles in the bottom drawing correspond; any two vertices with an edge between them in the top graph have their corresponding circles touching at a tangent in the bottom drawing. The interiors of all circles are disjoint.
<a href="//commons.wikimedia.org/wiki/User:Dcoetzee" title="User:Dcoetzee">Dcoetzee</a>
<span class="int-own-work" lang="en">Own work</span>