REFLECTING ON REFLECTING #1
ACTIVITY SHEET
Section II
| In a figure, if two or more lines of reflection intersect to form equal angles, then we say the figure has dihedral symmetry.
|
6. Use your mirror to check which figures below have dihedral symmetry.
- First draw your lines of reflection.
- Then, check if the angles formed are equal.
- For the figures with dihedral symmetry, how many lines of symmetry can
you find?
7. The figure below has rotational symmetry, does it also have dihedral
symmetry?
8. List five things around the room you are in that have dihedral
symmetry.
9. Draw figures with exactly one, two, and four lines of dihedral
symmetry.
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