1. The Circle

2. O A CIRCLE Eg. ball,bangle,lemon.coin

3. O A CENTRE : O RADIUS : OA B CENTRE RADIUS

4. . O In a plane,each point of the circle is at equal distance from a fixed point.The fixed point is called the centre of the circle. CENTRE = O

5. O The distance from centre to any point on the circle is called radius of the circle. A RADIUS = OA Radius

6. . O DI AMETER A Line segment passing through the centre of the circle and whose end points lie on the circle is called the diameter of the circle. A B DIAMETER = AB

7. . O The length of the circle or the distance around it is called circumference of the circle. CIRCUMFERENCE

8. . O A B A Line segment whose both the ends touches the circumference and passes through the centre is called diameter. DIAMETER : AB