1.
REVIEW

2.
Information/Definition Application in real life
Procedures/Process
What are the things
that I want to know
more?
CIRCLES

3.
CIRCLE AND ITS PARTS

4.
OBJECTIVES
1
• You will be able to know the
essential parts of the circle.
2
• You will be able to state the
definition of each part.
3
• You will be skilled at constructing
circles with the given parts.
Lesson: CIRCLE AND ITS PARTS

5.
VOCABULARY CONCEPT
Circle
Center
Radius
Chord
Diameter
Tangent
Point of Tangency
Circumference
Secant
Segment
Lesson: CIRCLE AND ITS PARTS

6.
DETECTIVE MATH
CIRCLE
CENTER
A CIRCLE is
the locus or set
of all points in a
plane equidistant
from a given
point called the
center of the
circle.
Lesson: CIRCLE AND ITS PARTS

7.
DETECTIVE MATH
CIRCUMFERENCE
CIRCUMFERENCE is
the distance
around the circle.
Lesson: CIRCLE AND ITS PARTS

8.
DETECTIVE MATH
RADIUS is a
segment
whose
endpoints are
at the center
and any point
on the circle
RADIUS
Lesson: CIRCLE AND ITS PARTS

9.
DETECTIVE MATH
CHORD is a
segment
whose
endpoints are
on the circle
Lesson: CIRCLE AND ITS PARTS

10.
DETECTIVE MATH
DIAMETER is
a chord which
contains the
center of the
circle. It
divides the
circle into
congruent
parts called
semi circle
DIAMETER
Lesson: CIRCLE AND ITS PARTS

11.
DETECTIVE MATH TANGENT line
on a circle is a
line that
intersect a
circle at
exactly one
point. The
point of
intersection is
the point of
tangency.
TANGENT LINE
POINT OF TANGENCY
Lesson: CIRCLE AND ITS PARTS

12.
DETECTIVE MATH
SECANT is a
line that
intersects a
circle at
exactly two
points.
SECANT
Lesson: CIRCLE AND ITS PARTS

13.
DETECTIVE MATH
ARC is a
portion of
the
circumferen
ce of the
circle
ARC
Lesson: CIRCLE AND ITS PARTS

14.
DETECTIVE MATH
SEGMENT
is a region
bounded by
a chord and
the arc
subtended
by the
chord
SEGMENT
Lesson: CIRCLE AND ITS PARTS

15.
DETECTIVE MATH
SECTOR is
an area
bounded by
two radii and
arc
subtended
between
them.
Lesson: CIRCLE AND ITS PARTS

16.
How can we help in conserving
our natural resources?
Lesson: CIRCLE AND ITS PARTS

17.
Lesson: CIRCLE AND ITS PARTS

18.
DRILL
Draw circles with the following parts.
1. The center is at M.
2. Radius 𝑀𝑃
3. Diameter 𝑄𝑆
4. Chord 𝑆𝑇
5. Secant 𝑊𝑇
6. Tangent 𝑊𝑋 whose point of tangency is at W.