QL-P10: Orthocenter QL-Diagonal Triangle

 
QL-P10 is the Orthocenter of the Diagonal Triangle (QL-Tr1) of the Reference Quadrilateral.
 
 
QL-P10-DT-Orthocenter-00
 
Coordinates:  
1st CT-coordinate:
m n (2 Δ2 (l m + l n - m n) (l m + l n + m n) - a2 l2 (2 m n SA + l n SB + l m SC)
                                                 + l m n (n SA SB + m SA SC) + l2 (n2 SB2 + m2 SC2))
 
1st DT-coordinate:
            1/ Sa
 
 
Properties:
        QL-P1.QL-P16                 (-1 : 2 => QL-P10 = Reflection of QL-P16 in QL-P1)
        QL-P2.QL-P10=QL-L6
        QL-P8.QL-P9                   (-2 : 3)

 

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