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9 A brooch is m ade with silver wire in the irm of achcie with dancotoar 35 mm. The wire isalso used inmaking 5 dian eters which divide the circle into Iooqual sactors as shown in Fig 12.12. Find :เก6) the total length ofthe silver wire required(Gi) the area of cach sactor of the brooch.ig. 12.12 |
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