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). Find(i) the area of that part of the field in which thehorse can graze.(ii) the increase in the grazing area if the rope were10 m long instead of 5 m. (Use T 3.14)9. A brooch is made with silver wire in the form ofacircle with diameter 35 mm. The wire is also used inmaking 5 diameters which divide the circle into 10equal sectors as shown in Fig. 5.12. Find:(i) the total length of the silver wire required.(ii) the area of each sector of the brooch.

8. A horse is tied to a peg at one corner of a squareshaped grass fiel

1.	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). Find(i) the area of that part of the field in which thehorse can graze.(ii) the increase in the grazing area if the rope were10 m long instead of 5 m. (Use T 3.14)9. A brooch is made with silver wire in the form ofacircle with diameter 35 mm. The wire is also used inmaking 5 diameters which divide the circle into 10equal sectors as shown in Fig. 5.12. Find:(i) the total length of the silver wire required.(ii) the area of each sector of the brooch.
Answer»