Perimeter of the rectangle = 364 meter Breadth = 84 m. Length = l 2(l + b) = 364 2(l + 84) = 364 2l + 168 = 364 2 l = 196 l = 98 m. Radius = l + 7 = 98 + 7 = 105 m. Circumferences of the circle = 2πr = 2×
22
7
×105 = 660 m. Cost of fencing = 660 × 8 = Rs 5,280