11. Sangeeta fixes 9 square tiles, each of a side 50 cm in two different way 9 as shown below: (0) 50 m (a) What is the perimeter of the first arrangement as shown in Fig. (1)? (b) What is the perimeter of the second arrangement as shown in Fig. (10)? (c) Which has the perimeter more and by how much? 12. Ashok walks around a square park of side 90 m. Ashish walks around a rectangular park of length 100 m and breadth 70 m. Each one covers five rounds. Who covers more distance and by how much?
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