QL-P14: 1st QL-Quasi Centroid
QL-P14 is the Centroid of the triangle formed by the three 1st Quasi Centroids (QG-P4) in a Reference Quadrilateral.
The prefix QL- has been added in the name of QL-P14 because there is also a 1st Quasi Centroid in a Quadrangle.
(m - n) (2 l5 m3 - 4 l4 m4 - 2 l5 m2 n - l4 m3 n + 9 l3 m4 n - 2 l5 m n2 + 10 l4 m2 n2 - 9 l3 m3 n2 - 3 l2 m4 n2 + 2 l5 n3 - l4 m n3 - 9 l3 m2 n3 + 13 l2 m3 n3 - 5 l m4 n3 - 4 l4 n4 + 9 l3 m n4 - 3 l2 m2 n4 - 5 l m3 n4 + 3 m4 n4)
(m2- n2) (l4 + 3 l2 m2 + 3 l2 n2 - 7 m2 n2)
- QL-P14 lies on this line: