The outer edge of a circular running track is 330 m long.If it is widened by 7 m around find the cost of widening it a t r upees 8per m square. Share with your friends Share 4 Brijendra P. answered this Refer the similar link:https://www.meritnation.com/ask-answer/question/the-outer-edge-of-a-circular-track-is-440-m-and-the-radius-o/perimeter-and-area/8722875 -2 View Full Answer