one circle and one quadrilateral PART3@@
Quadrilateral ABCD contacts circle O.
What the geometric quality is there among the four quadrilaterals(Quadrilateral ASOQ , Quadrilateral BTOS , Quadrilateral CPOT , Quadrilateral DQOP)?
@You can also move point A,C,O on CABRI.

Download CABRIU data (d69) from here.