Triangles obtained with S=X(15) and S=X(16) are the outer/inner Le Viet An triangles, resp., defined in https://faculty.evansville.edu/ck6/encyclopedia/IndexOfTrianglesReferencedInETC.html.
Let ABC be a triangle with P, Q are two points on Euler line of ABC. A',B',C' are inverse images of A,B,C through circle diame...
Triangles obtained with S=X(15) and S=X(16) are the outer/inner Le Viet An triangles, resp., defined in https://faculty.evansville.edu/ck6/encyclopedia/IndexOfTrianglesReferencedInETC.html.
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