the area of the shaded region between 2 concentric circles is 266cm square. if the difference between the circles radii is 7cm, find the sum of their radii. Share with your friends Share 0 Priyanka Kedia answered this Refer the following link: https://www.meritnation.com/ask-answer/question/of-shaded-region-between-two-concentric-circles-is-286c/areas-related-to-circles/6936786 0 View Full Answer