CIRCLE

•Is a closed curve , all points are equally distant from the center.

•An arc is a portion of the circumference of the circle.

1. Concentric circle

• consist of two or more circles with a one center.

2. Eccentric circles

•Are circles having no common center.

3. Ellipse

•Is an oblique circle with two axes, the minor axis and the major axis

4. Radius

•Is a line segment from the center to any point on the circle

5. Chord

• is a line segment whose endpoints lie on the circle.

6.Diameter

•Is a chord that passes through the line

7. Sector

•Is a portion of a circle bounded by two radii and the intercepted arc.

8. Segment

• Is a portion of a circle bounded by an arc and a chord.

9. Circumference

•Is the distance around the circle.

•The circumference is equal to the diameter multiplied by 3.1416

10. Quadrant

•Is one- fourth of the entire area of the circle.