1. M6G1a – Determine and use lines of symmetry.
Line Symmetry
M6G1a – Determine and use lines of symmetry.

2. Line symmetry - when one half of a figure is exactly the same as the other half (congruent).

3. If an image can be folded in half so that one half fits exactly on top of the other, then the fold is called the line of symmetry.

4. If an object is reflected in water it is considered to have line symmetry along the waterline.

5. Symmetry exists in architecture all around the world
Symmetry exists in architecture all around the world.  The best known example of this is the
Taj Mahal.

6. Let's Practice....

7. Draw all lines of symmetry.

8. Draw all lines of symmetry.

9. Draw all lines of symmetry.

10. Line Symmetry in the Alphabet
Which letters have lines of symmetry?
Click to see the lines of symmetry. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

11. Lines of Symmetry all around us
Which of these road signs have lines of symmetry?
Click to see the lines of symmetry.