1. 9.4 Symmetry
Brett Solberg
AHS
‘11-’12

2. Warm-up
Get out your notes and HW.
Which HW problems should we review?

3. Today’s Agenda HW Review Quiz 9.4 Symmetry
Line of Symmetry
Point Symmetry
Cumulative Review Corrected Next Class

4. Symmetry
A figure has symmetry if a transformation can map the figure onto itself.

5. Line of Symmetry
A line on a figure where each half is a mirror image of the other half.

6. Rotational Symmetry
Any figure that can be rotated less than 360° and look the exact same as the original.

7. Line of Symmetry
Draw all lines of symmetry

8. Rotational Symmetry
Do the figures have rotational symmetry?

9. Practice

10. Assignment
Finish 9.3 Worksheet
9.4 Worksheet