Given the following information, determine which lines, if any, are parallel. State the postulates or theorems that support your answer.
1. ∠13 ≅ ∠6 ___________________________________
2. ∠8 ≅ ∠16 ___________________________________
3. ∠5 ≅ ∠7 ____________________________________
4. m∠7+ m∠11 = 180° _________________________
5. m∠3+ m∠8 = 180° __________________________