A brooch is made with silver wire in the form of a circle with diameter 14 mm. The wire
is also used in making 5 diameters which divide the circle into 10 equal sectors as shown
in Fig. Find the area of each sector of the brooch.
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Answer:
Diameter =35mm
∴ Circumference of circle
=2×π×r =2×π×17.5=110mm
i) The total length of the silver wire required
= Circumference of circle + (5×35)
=110+175 = 285mm
(ii) The area of each sector of the brooch
=10Area of circle
=10π×17.5×17.5
=4385mm2
mPatel11:
is it correct l tried my best
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