Question

Urgent va rog eu mult pe toate 3

Answer 1

3) x+25=50 (unghiuri opuse la varf)
x=50-25
x=25°

d1║d2⇒2y+10=50⇔2y=50-10⇔2y=40⇔y=40:2⇔y=20°

1) 4x-50=2x+50⇔4x-2x=50+50⇔2x=100⇔x=100:2⇔x=50°
cele doua unghiuri au valoarea 4·50-50=200-50=150°
1=180-150=30°
2≡1⇒2=30°
3=180°-∡2=180°-30=150°

2)5=60°
d1║d2⇒∡3=∡5=60°
∡6=180-∡5=180°-60°=120° (unghiuri opuse la varf)
d1║d2⇒∡6=∡4=120°
∡5=∡7=60°(unghiuri opuse la varf)
∡6=∡8=120°(unghiuri opuse la varf)
∡1=∡3=60°(unghiuri opuse la varf)
∡2=∡4=120°(unghiuri opuse la varf)