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X(3), X(5), X(140)

O* = X(14978), the isopivot on the lines X(3)X(95), X(4)X(93), X(5)X(324), etc

K413 is a member of the class CL021 of pKs with pivot O. It is a pK++ with three asymptotes concurring at X(140). These asymptotes are parallel to the cevian lines of X(5) and pass through the midpoints of ABC.