I proposed a generalization of the Archimedean circle : In this figure $M$ is the midpoint of $AB$, $DE$; $(G)$, $(H)$, $(M)$ are the semicircles. Then two yellow circles are congruent.
Question: Is this result know?
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1$\begingroup$ Dr. Floor van Lamoen say me that: He saw it here in an article by Hiroshi Okumura: hrcak.srce.hr/file/197554 $\endgroup$– Đào Thanh OaiCommented Jun 9, 2023 at 1:24
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