Răspuns:
a) Â=35°, B=45°
Ĉ = 180°-(35°+45°) = 180°-80°=100°
Ĉ > B > Â
[tex]\boldsymbol{ \red{ AB, AC, BC }}[/tex]
b) Â=97°, Ĉ=40°
B = 180°-(97°+40°) = 180°-137° = 43°
 > B > Ĉ
[tex]\boldsymbol{ \red{ BC, AC, AB}}[/tex]
c) B=70°, Â=40°
Ĉ = 180°-(70°+40°) = 180°-110°) = 70°
B = Ĉ > Â
[tex]\boldsymbol{ \red{ AC = AB, BC}}[/tex]
d) Â=B=60°
Ĉ = 180°-(60°+60°) = 180°-120° = 60°
Â=B=Ĉ
[tex]\boldsymbol{ \red{ BC = AC = AB}}[/tex]