Answer:
The answer is ∠7 ≅ ∠4 is not true
Explanation:
∵ l // n
∴ ∠2 = ∠6 ⇒ corresponding angles
∵ ∠6 = ∠8 ⇒ vertically opposite angles
∴ ∠8 = ∠2
∵ ∠5 = ∠3 ⇒ alternate angles
∵ ∠4 + ∠5 = 180° ⇒ interior supplementary angles
∵ ∠7 = ∠5 ⇒ vertically opposite angles
∴ ∠4 + ∠7 = 180°
∴ ∠7 ≠ ∠4