please give proof of this Share with your friends Share 0 Pabita Mahato answered this 1 View Full Answer Suman Sinha answered this In triangle AQP, B is the midpoint of AB and BP (given) BC is parallel to QP (given) therefore by theorem C is the midpoint of AQ. Perimeter of ABCD, 5+5+8+8(since opposite sides of a parallelogram are same) =26 cm Hope it helps 1