Someone plz also plz explain how you got that answer so i can do the rest!

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol