Răspuns :
Răspuns:
a) x=180°-(35°+90°)=180°-125°=55°
b) x=140°-90°=50°
c) x=58°+90°=148°
d) x=180°-(90°+(90°-62°)=180°-(90°+28°)=180°-118°=62°
a)180-35-90=55
b)180-(180-140)-90=50
c)180-90-58=32(unghiul ce ne lipsea)
X=180-32=148
d) 180-[90+(90-62)]=180-(90+28)=180-118=62
b)180-(180-140)-90=50
c)180-90-58=32(unghiul ce ne lipsea)
X=180-32=148
d) 180-[90+(90-62)]=180-(90+28)=180-118=62