X(2), X(8), X(10), X(75), X(307), X(318), X(321), X(1441)
K366 is a member of the class CL042.
It has the same asymptotic directions as pK(X2, X58).
It is the isotomic transform of K317 = pK(X81, X86).
The cevian triangle of any point on K366 is perspective with the outer Garcia triangle (see ETC, preamble of X5587) and the perspector lies on K033.
See also K233.