Q. Find AD Share with your friends Share 0 Annapurna Shobitha answered this Hope it helps !!! 2 View Full Answer Soumya Jain answered this We know that if a circle touches all the sides of a quadrilateral then it is a parallelogram. And opposite sides of a parallelogram are equal therefore - AD+BC = AB +DC AD+ 7= 6+ 4 cm AD +7= 10 cm AD = 3cm 1