**New Plane Graphs From Old (Sheet N)
**

Prepared by:

Joseph Malkevitch

Department of Mathematics and Computer Studies

York College (CUNY)

Jamaica, New York

email:

malkevitch@york.cuny.edu

web page:

http://york.cuny.edu/~malk/

1. For the graphs below, draw (a). The dual graph (b) the medial graph (c) the line graph (d) the graph where each edge is replaced by a hexagon.