I don't know about the top half but I know the bottom half. P.S. I'm sorry
8. AB is congruent to BC
9. EC is congruent to ED
10. angle TRS is congruent to angle RST
11. 42°
12. 76°
13. 12
14. 60°
15. 7
16. 4
17. angle ADC
18. angle 1 & 5 and angles 3 & 4
19. AC and DC
