Powerpoint about Related terms to circle

1. Prayer
Dear Lord,
Teach me to number my days
Add the value that you want from me
And subtract the attitude that you
don't like from me.
Give a line so I know where I am and
Graph them accordingly to your ways
Divide the values we possess so we can
multiply them systematically
Trusting you to base us in our plan
To compliment your perfect diagram.
AMEN.

2. Attendance check
Cleanliness

3. Drill 555
a) -8 + 16
b) 20 – (-24)
c) 5 (-11)
d) -8 + (-32)
e) 50 – (-18)

4. REVIEW

5. What am I?
You can find me all
around.
I am made up of three
connected lines.
I have three vertices
I am a polygon.
Triangle

6. What am I?
I am any figure
with four sides
and four angles.
Who do you
think I am?
Quadrilateral

7. What am I?
I have six sides
and the same
number of angles.
What shape am I?
Hexagon

8. Review
a) What is a polygon?
b) What are the two
main parts of a
polygon?

9. How about these?
donut rubber band ring

10. 4 PICS 1 WORD

11. U D T O N
DONUT

12. G I N R
RING

13. R U V C E
CURVE

14. T E N C E R
CENTER

15. O U R D N
ROUND

16. Circle and the Terms related to it
CIRCLE

17. identify the related terms of a circle
draw a circle and the terms related to it:
center, radius, diameter, chord, secant and tangent; and
Learning Objectives
appreciate the value of circles to real-life situations

19. CIRCLE CIRCLE is the set
of all points in a
plane at a given
distance (radius)
from a given point
(center) in the
plane.

20. Real-life examples of circles
donut rubber band ring

21. • A circle is named by its center.
• Center is the point equidistant from the
points on the edge.
• Note that the radius of a circle is NOT
unique.
• You can draw as many radii on a circle as
there are points on the circle.
• The same is true for a diameter of the circle.
Take Note

22. Terms Related to a Circle
Radius of a circle is line
segment from the center
to any point of the circle.

23. Terms Related to a Circle
Diameter of a circle is a
chord containing the center.

24. Terms Related to a Circle
Chord of a circle is a line
segment whose endpoints
lie on the circle.

25. Terms Related to a Circle
Secant of a circle is a
line that intersects the
circle in two points.

26. Terms Related to a Circle
Tangent of a circle is
line lying on the same
plane as the circle that
intersects the circle in
exactly one point.

27. Terms Related to a Circle
The point of tangency
or point of contact is
the point where the
tangent touches the
circle.

28. Example Refer to the given figure to give the
correct term for the following:

29. • Circle is the set of all points in a plane at a given distance (radius) from a given
point (center) in the plane.
• A circle is named by its center.
• Radius of a circle is line segment from the center to any point of the circle.
• Diameter of a circle is a chord containing the center.
• Chord of a circle is a line segment whose endpoints lie on the circle.
• Secant of a circle is a line that intersects the circle in two points.
• Tangent of a circle is line lying on the same plane as the circle that intersects the
circle in exactly one point.
• The point of tangency or point of contact is the point where the tangent
touches the circle.
Generalization

30. Lines Related to a Circle
Radius of a circle is line segment from the center
to any point of the circle.
Diameter of a circle is a chord containing the center.
Chord of a circle is a line
segment whose
endpoints lie on the circle.
Secant of a circle is a
line that intersects the
circle in two points.
Tangent of a circle is
line lying on the same
plane as the circle that
intersects the circle in
exactly one point.
The point of tangency
or contact is the point
where the tangent
touches the circle.

31. Evaluation
1. Name the circle
2. Identify two diameters
3. Identify four radii
4. Identify four chords
5. Name a secant
6. Name a tangent
7. Identify the point of tangency
Directions: Use the figure and
identify the parts of the circle.

32. Homework
Be prepared for our next lesson tomorrow about the
types of arcs in a circle.