Answer:
A , B, D, F
Step-by-step explanation:
A) ∠1 ≅ ∠ 4 {Vertically opposite angles are congruent}
B) m∠2 + ∠4 + ∠6 = 180° {Straight line angles}
∠6 ≅ ∠3
⇒ ∠2 + ∠4 + ∠3 = 180°
D) ∠2 + ∠3 + ∠4 = 180° {Straight line angles}
f) ∠2 + ∠3 = ∠5 + ∠6 {Vertically opposite angles}
