four lines on a triangle@@
@There is a triangle.
A pink line is the bisector of angle.
A yellow line is the perpendicular.
A blue line is the median.
A green line is perpendicular at midpoint.

Move point P to find when the four lines became one line.
@You can also move points (A,B,C) on CABRI.

Download CABRI‡U data (d60) from here.