The document discusses identifying symmetric figures and lines of symmetry. It explains that a line of symmetry can be found by folding a shape so that the folded edges match perfectly. It provides examples of symmetric shapes and asks students to find lines of symmetry and complete symmetric figures. The goal is for students to practice identifying symmetry in different shapes.

1. Geometry
Symmetry
What will we learn today?
• identifying symmetric figures
• determining whether a straight line is
a line of symmetry of a symmetric
figure
• completing a symmetric figure with
respect to a given horizontal/vertical
line of symmetry

2. Let's find symmetry in shapes!

3. Symmetric Figures
You can find if a shape has a Line of Symmetry
by folding it.
When the folded part sits perfectly on top
(all edges matching), then the fold line is a
Line of Symmetry.

4. Symmetric Figures
When the folded part sits perfectly on top
(all edges matching), then the fold line is a
Line of Symmetry.

5. Symmetric Figures
Try folding it this way!
When the folded part sits perfectly on top
(all edges matching), then the fold line is a
Line of Symmetry.

6. Symmetric Figures
Try folding it this way!
When the folded part sits perfectly on top
(all edges matching), then the fold line is a
Line of Symmetry.
This is line of symmetry.

7. Try this out!
Find the line of symmetry.

8. Is this the line of symmetry?
No, it is not the line of symmetry.
The line does not cut the figure into equal shapes.

9. Solution

10. Try this out!
Find the line of symmetry.

11. Try this out!
Find the line of symmetry.

12. Try this out!
Find the line of symmetry.

13. Try this out!
Find the line of symmetry.

14. Try this out!
Find the line of symmetry.

15. There are 4 lines of symmetry.

16. Try this out!
Complete the figure.

17. Solution

18. Are you ready to
try out the
questions?

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