12.1. Reflection Symmetry http://www.ck12.org
Watch this video for help with the Examples above.
MEDIA
Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/52454CK-12 Foundation: Chapter12ReflectionSymmetryB
Concept Problem Revisited
The starfish has 5 lines of symmetry.
Vocabulary
Aline of symmetryis a line that passes through a figure such that it splits the figure into two congruent halves.
Reflection symmetryis present when a figure has one or more lines of symmetry.
Guided Practice
Find all lines of symmetry for the shapes below.