Задание
Найдите верное утверждение.
- \(\angle 5=\angle7, \angle2 + \angle3 = 180^\circ\)
- \(\angle 9=\angle 11, \angle1 + \angle3 = 180^\circ\)
- \(\angle 3=\angle4, \angle9 + \angle10 = 180^\circ\)
- \(\angle 6=\angle8, \angle10 + \angle12 = 180^\circ\)