Дополните: m ║ n , ∠2 : ∠1 =3:2, ∠3=...°

Question

Дополните:
m ║ n , ∠2 : ∠1 =3:2, ∠3=...°

---

Answer 1

<2=3х<br><1=2х<br>3х+2х=180°
5х=180°
х=180°:5=36°
<1=2*36°=72°<br><3=<1=72°