>I am trying to find some sources on the Rouleaux triangle. It would be >especially helpful if any history and properties of the triangle are >published.\ >
Martin Gardner's book "Further Mathematical Diversions", chapter 18 is entitled "Curves of Constant Width". It contains a swag of interesting info on the Reuleaux Triangle (as he spells it).
(ISBN 0 04 793015 2)
The chapter essentially is one of his articles from Sci Am, from the '60s, with answers and an addendum added, but the book doesn't indicate which issue.
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