Question 347106
{{{AB}}} is perpendicular to {{{BD}}}.
{{{AB}}}, {{{BD}}} bisect each other at point {{{x}}}.
If AB and BD share an end point, they can't bisect each other. 
PLease explain.
{{{drawing(300,300,-10,10,-10,10,circle(-8,-1,0.3),circle(0,9,0.3),circle(0,-1,0.3),line(-8,-1,0,-1),line(0,9,0,-1),locate(-7.5,0,A),locate(00.5,10,D),locate(0.5,0,B))}}}