Please solve this problem Let ABCD be a quadrilateral in which angle A = angle C and angle B= angle D. Prove that ABCD is a parallelogram Share with your friends Share 0 Siya answered this sorry dont know how to do this 1 0 View Full Answer Sayan Nandy answered this Sry...idk 1 Mujtaba answered this srry IDK 1 Sagnik Datta answered this sry don't know 0