[" Q."A(3,4),B(0,0)" and "C(3,0)" are vertices of "/_ABC" .If "P" ' is the point inside the "/_ABC" ,such that "],[d(P,BC)<=min.{d(P,AB),d(P,AC)}" .Then the maximum of "d(P,BC)" is."],[" (where "d(P,BC)" represent distance between "P" and "BG)" ."]