Am nevoie de ajutor. Va rog
![Am Nevoie De Ajutor Va Rog class=](https://ro-static.z-dn.net/files/d91/f1e910802cc8b186ee20673dfe13b9ae.jpg)
Răspuns:
AOB=180°
COD=180°
AOC=DOB=2x°(opuse la varf)
AOB=AOD+DOB
180°=6x-60°+2x
180°=8x-60°
8x=180°+60°
8x=240°
x=240°:8
x=30°
AOC=DOB=2•x=60°(opuse la varf)
AOD=COB=6x-60°=120°(opuse la varf)