Chapter 12 Planar Graphs490
(a) (b) (c)Figure 12.13 The tetrahedron (a), cube (b), and octahedron (c).
v(a) (b) (c)Figure 12.14 Planar embeddings of the tetrahedron (a), cube (b), and octahe-
dron (c).
avery
(avery)
#1
Chapter 12 Planar Graphs490
(a) (b) (c)Figure 12.13 The tetrahedron (a), cube (b), and octahedron (c).
v(a) (b) (c)Figure 12.14 Planar embeddings of the tetrahedron (a), cube (b), and octahe-
dron (c).