A brooch is made with silver wire in the form of a circle with diameter 35 mm. The wire is also used in making 5 diameters which divide the circle into 10 equal sectors as shown in Fig.. Find: (i) the total length of the silver wire required. (ii) the area of each sector of the brooch.

Ncert solution class 10 chapter 12-7

(i) Total length of silver wire required=circumference of broach+5diameter





(ii) Area of each sector=1/10*Area of circle





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