8. A rectangular piece of plot measures 0.6 km by 0.5 km. Each side is to be fenced withwhat will be the cost of the wire required for fencing?10. A rectangular piece of land is to be fenced for an exhibition. The length of the exhibition land5 rows of wires. What is the length of the wire needed? If the wire costs 7 9 per metre,9. Ranjan walks around a rectangular park of length 60 m and breadth 40 m and Smita walksaround a square park of side 55 m. Both take 3 rounds each. Who walks more distance andis 250 m and its breadth is 200 m. We need to keep an entrance of 10 m and an emergencyexit of 5 m. If the cost of this special fencing is 7 175 per metre, what will be the total costof fencing?11. A rectangular field is 15 m long and 10 m wide. Another rectangular field having the sameperimeter has its sides in the ratio 4 : 1. Find the dimension of the rectangular field,by how much?​