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8. A horse is tied to a peg at one corner of a squareshaped grass field of side 15 m by means of a 5 mlong rope (see Fig. 5.11). Find0 the area of that part of the field in which thehorse can graze.(i) the increase in the grazing area if the rope wereFig. 5.1110 m long instead of5 m. (Use π = 3.14)

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