Odpowiedź:
a) 180°-(45°+110°)=180°-155°=25°
[tex] \alpha = 25[/tex]
b) 180°-(30°+90°)=180°-120°=60°
[tex] \beta = 60[/tex]
c) 180°-(65°+25°)=180°-90°=90°
[tex] \gamma = 90[/tex]
