circles

2. TOPIC : CIRCLES
DEVIKA HARIDAS
B.Ed Mathematics
Mangalam College of
Education

3. CIRCLES
• Sector
• Circle
• Radius
• Circumference
• Congruent Circle
• Concentric Circle
• Chord
• Diameter
• Arc

4. CIRCLE
A circle may be defined as the collection of
points which are at equal distance from a
fixed point.
.c

5. RADIUS
A segment from a point on the circle to the
center of the circle.
C.
Radius

6. CIRCUMFERENCE
The circumference is the distance
around the circle.
C.
Circumference

7. CONGRUENT CIRCLE
C. C.
Two circles whose radii have the same
measure.

8. CONCENTRIC CIRCLE
.C
CONCENTRIC CIRCLE
Two or •more circle that share the same
center.
•C

9. CHORD
.O
A
B
C
D
A chord of a circle is a segment whose
endpoints lie on the circle.

10. DIAMETER
A chord passing through the
center of a circle .
C.B Q

11. ARC
An arc is part of a circle connecting two points
of the circle.
c.
ARCA
B

12. SECTOR
A sector is a region contained by two radii
and an arc.
C.
SECTOR
A
B