In a Triangle ABC Orthocentre is H (2354,981).
If A = (2,1) B = (-10,6) then the distance between the orthocentres of triangle HBC and HAC is ?

In a triangle ABC In a triangle ABC are the sentries h 23 54981 if a equal to 21 B equal to minus 10 6 in the distance between the orthocentre of triangle hbc triangle HAC is