Va rog repede acum am nevoie de ea
![Va Rog Repede Acum Am Nevoie De Ea class=](https://ro-static.z-dn.net/files/da3/000a87ba8b6203f3d44d53e33af45c99.png)
Răspuns:
AOC=90°=AOB+BOC
AOB=40° => BOC=90°-40°=50°
BOD=50°+COD
COD = 180-50=130
Sper ca te-am ajutat!