1) 180-(60+50)= 180-110=70
2) 180-(90+20)= 180-110=70
3)180-40=14
140:2=70 (K и L)
4) P = 30
N= 180-(30+30)=180-60=120
5) 180-90=90 (B)
90:2=45 (A и C)
6)180:3= 60 (A и B и C)
7) ACB=180-(40+40)= 100
ACE= 180-100=80
8) BAF=180-150=30
FBA= 180-(70+30)= 180-100=80