Q. In the given figure, ∠ 1 = 55 ° , ∠ 2 = 20 ° , ∠ 3 = 35 ° and ∠ 4 =145 ° . Prove that AB ∥ CD. Share with your friends Share 5 Ankit Khandelwal answered this Dear Student Regards 1 View Full Answer Keshav Bihani answered this Here's your answer. A like would be appreciated. 13