Răspuns :
unghiurile au masurile x si 180-x
prsupunand x mai mare
x-(180-x)=40
2x-180=40
2x=220
x=110° si 180-x=70°
presupunand 180-x mai mare
180-x-x=40
140=2x
x=70°
⇒180-x=180-70=110°
unghiurile au masurile x si 180-x
prsupunand x mai mare
x-(180-x)=40
2x-180=40
2x=220
x=110° si 180-x=70°
presupunand 180-x mai mare
180-x-x=40
140=2x
x=70°
⇒180-x=180-70=110°