angles

1. Classifying Angles
Prepared by: Laila V. Balinado

2. Identify each figure that
contains point x and y as a
line segment, line or a ray.
REVIEW

3. RAY

4. LINE

5. SEGMENT

6. RAY

7. SEGMENT

8. RAY

9. PAK GANERN

10. Tell whether the following illustration is an angle or not. Say
“PAK” if it is an angle and “GANERN” if it is not.

11. Presentation

12. PAK
PAK PAK
GANERN GANERN GANERN
GANERN GANERN

13. What is an angle?
•Two rays that share the same endpoint.
•The point where the rays intersect is called
the vertex of the angle. The two rays are
called the sides of the angle.

14. It is measured by means of
an instrument, the
protractor, which gives a
measure in terms of
degrees.

15. How to name an angle
By its vertex
By 3 points with the vertex in
the middle
By a number on it
By a lower case letter on it.

16. NAME THE ANGLES

17. O
B
S
E
R
V
E

18. FOUR TYPES/CLASSIFICATION OF
ANGLE
a. Acute angle
b. Right angle
c. Obtuse angle
d. straight angle.

19. Acute angle is an angle measuring
between greater than 0 and less
than 90 degrees.

20. Obtuse Angle is an angle measuring
greater than 90 and less than 180
degrees.

21. Right Angle is an angle measuring
exactly 90 degrees.

22. Straight Angle is an angle measuring
exactly 180 degrees.

23. GAME TIME

24. Identify whether the given
angle is acute, obtuse, right
or straight angle

25. Acute
Angle

26. Straight
Angle

27. Obtuse
Angle

28. Right
Angle

29. Straight
Angle

30. GROUP
ACTIVITY

31. Group 5 – Draw your own example of the following
angles.
•Straight Angle
•Obtuse Angle
Group 2 – Name the type of angle you will see from the given
pictures.
Group 3 – Create a song about types of angle.
Group 4 – Create a poem using all the types of angle.
Group 1 – Draw your own example of the following angles.
•Acute Angle
•Right Angle

32. Rubrics:
Cooperation: 5 points
Presentation: 10points
Creativity: 5 points
Accuracy: 10 points
Total: 30 points

33. Presentation

34. Warm- Up time

35. Sit- Up
Lying knee bent
Lying down Complete sit up
sit up partway
Straight Obtuse Right
Acute

36. Seatwork

37. THANK
YOU 