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Dau coroana! Repede va rog! Exercitiul 2! 45 puncte!!

Dau Coroana Repede Va Rog Exercitiul 2 45 Puncte class=

Răspuns :

Masurile tuturor unghiurilor=60°
a)z=60°
×+34°=60°=>x=26°
y-15°=60°=>y=75°

b)10°+z=60°=>z=50
y÷2=60°=>y=120°
x+80°=180°-60°
x+80°=120°
x=40°

c)z-40°=60°=>=100°
y+20°=60°=>y=40°
x+y=60°=>y=40°
x+y=60°=>x+40=60°=>x=20°