In geometry, an arbelos is a plane region bounded by three semicircles connected at the corners, all on the same side of a straight line (the baseline) that contains their diameters.[1]
The earliest known reference to this figure is in the Book of Lemmas, where some of its mathematical properties are stated as Propositions 4 through 8.
Carlos Arbelos has written: 'Matices flamencos' -- subject(s): Portraits, Flamenco musicians, Biography, Flamenco dancers
Arbelos or astroid, not sure which one you are looking for.
It is rather complex, and a multi-step process. See the link below for a full answer.