a brooch is made with silver wire in the form of a circle with diameter 35 M the wire is also used in making 5 diameter which divide circle into 10 equal sectors as shown in figure 12.12 find 1. the total length of the silver wire required 2. the area of each sector of the brooch
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Solution: Circumference = 2πr = 35π = 110 mm
Wire required for 5 diameters = 35 x 5 = 175 mm
Total length of wire = 110 + 175 = 285 mm
(ii) The area of each sector of the brooch
Solution: Since there are 10 equal sectors, so area of each sector will 1/10 the area of circle
Wire required for 5 diameters = 35 x 5 = 175 mm
Total length of wire = 110 + 175 = 285 mm
(ii) The area of each sector of the brooch
Solution: Since there are 10 equal sectors, so area of each sector will 1/10 the area of circle
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