arbelos   What is an arbelos? Properties of an arbelos         Distances and areas         Archimedes' circles         Apollonius circle         Bankoff circle         Pappus chain References   Stephen Tan 42373027 Dec 16, 2005 Math 308 by Dr. Bill Casselman Final Project References   Alexander Bogomolny. "Arbelos." http://www.cut-the-knot.com/proofs/arbelos.shtml   Antonio Gutierrez. "Archimedes' Book of Lemmas." http://agutie.homestead.com/files/ArchBooLem00.htm   Behnaz Rouhani. "The Arbelos." http://jwilson.coe.uga.edu/EMT668/EMAT6680.2002/Rouhani/Essay3/arbelos1r.htm   Eric W. Weisstein. "Arbelos." From Mathworld--A Wolfram Web Resource. http://mathworld.wolfram.com/Arbelos.html   Eric W. Weisstein et al. "Pappus Chain." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/PappusChain.html   "What is an Arbelos you ask?" http://www.arbelos.org/description.html   "Wilson's Inversive Geometry." http://www.maths.gla.ac.uk/~wws/cabripages/inversive/arbelos.html