La ex 3.
Doe= 16+eof
Cod+ cob+boa+aof+eof+dof=360grade
41+94+31+80+eof+doe=360grade
246+eof+doe=360grade
Eof+doe=360-246
Eof+doe=114 dar
Doe=16+eof inlocuim
Eof+16+eof=114
2eof+16=114
2eof=114-16
2eof=98=>eof=98:2=>eof=49
Daca eof=49 si doe=16+eof=>doe=16+49=>doe=65
Toate sunt unghiuri. Nu le-am mai pus semnul pt unghi.
La ex6.
La punctul a. Unghi aoc=360-130-80
Unghi aoc=150grade
La punctul b
x+50+2x+20+90+4x-10=360
150+7x=360
7x=360-150
7x=210=>x=210:7=>x=30
Daca aob=x=>aob=30grade
Daca vod=2x+20=>cod=2•30+20=>vod=60+20=80grade
Daca aoe=4x-10=>aoe=4•30-20=>aoe=120-10=>aoe=110grade
