**Areas related to Circles ncert solutions Chapter 12 Exercise 12.2 Question 9**

**9. 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 the figure. Find**

(i) the total length of the silver wire required

(ii) the area of each sector of the brooch

**Diameter of brooch=35 mm**

Therefore, radius= **mm**

**(i)**

**The total length of silver wire = Circumference of brooch + length of 5 diameters**

**mm**

**(ii)**

A**rea of every sector is equal.**

**Therefore, area of one sector = area of circle/10**

** Area of one sector =**