1. Name each of the following angles in 4 ways
Warm Up
Name each of the following angles in 4 ways

2. Reflections

3. Reflect across the x-axis

4. Reflect across the x-axis
Change the sign of the y-value

5. Reflect across the x-axis

6. PLICKERS Reflect point S across the x-axis: S(0,5) 𝐴) 𝑆 0, 5 →𝑆′(5, 0)
𝐴) 𝑆 0, 5 →𝑆′(5, 0)
𝐶) 𝑆 0, 5 →𝑆′(0, −5)
B) 𝑆 0, 5 →𝑆′(−5, 0)
𝐷) 𝑆 0, 5 →𝑆′(0, 5)

7. Reflect across the y-axis

8. Reflect across the y-axis
Change the sign of the x-value

9. Reflect across the y-axis

10. PLICKERS Reflect point T across the y-axis: T(1,5) 𝐴) 𝑇 1, 5 →𝑇′(5, 1)
𝐴) 𝑇 1, 5 →𝑇′(5, 1)
𝐶) 𝑇 1, 5 →𝑆′(1, −5)
B) 𝑇 1, 5 →𝑇′(−5, 1)
𝐷) 𝑇 1, 5 →𝑇′(−1, 5)

11. Reflect across y = x

12. Reflect across y = x
Swap x and y

13. Reflect across y = x

14. PLICKERS Reflect point S across the line y = x: S(0,5)
𝐴) 𝑆 0, 5 →𝑆′(5, 0)
𝐶) 𝑆 0, 5 →𝑆′(0, −5)
B) 𝑆 0, 5 →𝑆′(−5, 0)
𝐷) 𝑆 0, 5 →𝑆′(0, 5)

15. Reflect across y = -x

16. Reflect across y = -x
Swap and change both signs

17. Reflect across y = -x

18. PLICKERS Reflect point T across the line y = -x: T(1,5)
𝐴) 𝑇 1, 5 →𝑇′(−5, −1)
𝐶) 𝑇 1, 5 →𝑆′(−1, −5)
B) 𝑇 1, 5 →𝑇′(5, 1)
𝐷) 𝑇 1, 5 →𝑇′(−1, 5)

19. Lines of Symmetry
A line of symmetry is a line you can use to fold a figure so that both halves match up perfectly. This means the figure is symmetrical (balanced/matching) on both sides of the line.

20. Lines of Symmetry
How many lines of symmetry does the polygon have? 3

21. Lines of Symmetry
How many lines of symmetry does the shape have? 2

22. Lines of Symmetry
How many lines of symmetry does the shape have? 5

23. Homework
Practice Worksheet