a variable point on a right trianglet@@
@There is a variable point on a right triangle.Point P moves on right triangl ABC( A->B->C ).

Point of intersection(two light blue lines) means area of triangle APC.

Move point P to find the quality between the area of triangle APC and the length of locus(P).
@You can also move point P ,the numbers and top segment length (the length of unit)on CABRI.

Download CABRIU data (d58) from here.