Guessing the Symmetry Group

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This Demonstration provides a game of guessing the group of symmetries of a plane figure. There are two types of symmetry groups of a regular -gon, dihedral (D) and cyclic (C). A dihedral group is a collection of rotations and reflections (flips); a cyclic group contains only rotations.
Contributed by: Izidor Hafner (September 2011)
Open content licensed under CC BY-NC-SA
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"Guessing the Symmetry Group"
http://demonstrations.wolfram.com/GuessingTheSymmetryGroup/
Wolfram Demonstrations Project
Published: September 20 2011