am nevoie de exercitiul 6 pana la ora 20!!!

Răspuns:
<A=80° <B=14°=><C=180-(80+14)=86°
<CAA'=80:2=40°
<ACC'=86:2=43°
<ABB'=14:2=7°
<BIC=180-(7+43)=180-50=130°
b)<CAA'=34°. <ACC'=44°. =>
<A=34×2=68°
<C=44×2=88°
<B=180-(68+88)=180-156=24°
<AIB=180-(A/2+B/2)=180-(34+12)=
180-46=134°