In RT △ ABC, ∠ C = 90 °, BC = 6, ab = 10, BD is the bisector of the angle to find the distance from point d to ab Point D is on AC

In RT △ ABC, ∠ C = 90 °, BC = 6, ab = 10, BD is the bisector of the angle to find the distance from point d to ab Point D is on AC

In the right angle △ ABC: BC = 6 AB = 10 AC = 8
∵ BD bisection ∠ ABC ≌ abd = ∠ CBD ≌ △ BDC ≌ △ BDE
∴BD=BC=6 DE=DC ∴AE=AB-BE=10-6=4 AD=AC-CD=AC-DE=8-DE
In the right angle △ ade: ∵ AE & sup2; + de & sup2; = ad & sup2; ∵ 16 + de & sup2; = (8-de) & sup2;
The distance between point D and ab is 3