Activity 1 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. ∠7 + ∠11 = 180° _________________________ 5. ∠3 + ∠8 = 180° __________________________​