1. Triangles equilateral obtuse-angled acute-angled scalene congruent
vertex
polygon
right-angled
isosceles
line of symmetry

2. A triangle... is a closed figure (polygon) has three sides
vertexes
is a closed figure (polygon)
has three sides
has three vertexes
has three interior angles
side
angle

3. Classifying Triangles
first name middle name last name

4. Which angle is the largest?B

5. Which angle is the largest?B C

6. Which angle is the largest?B

7. Possible Middle Names for Triangles
obtuse-angled
right-angled
acute-angled

8. Classifying Triangles
acute-angled or
obtuse-angled
right-angled
triangle
first name middle name last name

9. Equilateral Triangles
3 congruent sides
3 congruent angles
3 lines of symmetry

10. Isosceles Triangle 2 congruent sides 2 congruent angles
1 line of symmetry

11. Scalene Triangles 0 congruent sides 0 congruent angles
0 lines of symmetry

12. Classifying Triangles
equilateral or
isosceles
scalene
acute-angled or
obtuse-angled
right-angled
triangle
first name middle name last name

13. Give the first, middle and last name for the following triangle:
isosceles
Right-angled
triangle
first name middle name last name

14. Give the first, middle and last name for the following triangle:
isosceles
obtuse-angled
triangle
first name middle name last name

15. Give the first, middle and last name for the following triangle:
equilateral
acute-angled
triangle
first name middle name last name

16. Give the first, middle and last name for the following triangle:
scalene
acute-angled
triangle
first name middle name last name

17. Give the first, middle and last name for the following triangle:
scalene
Right-angled
triangle
first name middle name last name

18. End of Part 1

19. Recap: Classifying Triangles
equilateral or
isosceles
scalene
acute-angled or
obtuse-angled
right-angled
triangle
first name middle name last name

20. Give the first, middle and last name for the following triangle:
What is the measure of < A and < B A B
first name middle name last name

21. What is the measure of < A and < B
Name The Angle
What is the measure of < A and < B A B
400
first name middle name last name

22. What is the measure of < A and < B
Name The Angle:
What is the measure of < A and < B A
300 B
first name middle name last name

23. Give the first, middle and last name for the following triangle:
What is the measure of < A A
300
first name middle name last name

24. What is the measure of < A , < B , and < C
Name The Angle
What is the measure of < A , < B , and < C A B C
first name middle name last name

25. What Can You Tell Me About These Figures?

26. What Can You Tell Me About This Figure?

27. What Can You Tell Me About This Figure?

28. What Can You Tell Me About This Figure?

29. What Can You Tell Me About This Figure?

30. What Can You Tell Me About This Figure?

31. Are These Figures Congruent?