\^^M{
  \frametitle{Unfinished Business}
  Computational geometry is a huge area of study by itself.
  \vskip 0.1in
  I have only been able to suggest how a study of triangles gives you a beginning
  insight into this field.
  \vskip 0.1in
  If you are interested, some accessible topics include the convex hull, the
  Delaunay triangulation, and the Voronoi diagram, all of which are useful
  geometric tools that are easy to understand, although trick to implement.
}