If BC = 32 and BD ∶ CD = 9 ∶ 7, then the distance between point D and ab is? 2. If y = 2, the distance between point D and ab is? 2 Please write down the process

If BC = 32 and BD ∶ CD = 9 ∶ 7, then the distance between point D and ab is? 2. If y = 2, the distance between point D and ab is? 2 Please write down the process

BD:CD=9:7
BC=32
So BD = 18, CD = 14
Ad is the angular bisector,
So the distance from D to AC = the distance from D to ab
So the distance between D and ab is 14

As shown in the figure, it is known that in RT △ ABC, ∠ C = 90 ° BD bisects ∠ ABC and intersects AC with D. if ∠ BAC = 90 ° verify: ad = BD
Modify ∠ BAC = 30 °

In RT △ ABC, ∠ C = 90 °, ∠ BAC = 30, ∠ bad = 60 ° / 2 = 30 °
So ad = BD