Respuesta :

Answer: 4 = 80, 1 = 100, 5 = 80, 3 = 80

Step-by-step explanation:

Answer:

80°

Step-by-step explanation:

Vertically Opposing Angles are equal when they are cut by a transversal.

  • Here ∠4 and 80° are vertically opposite angles
  • Hence, ∠4 = 80°