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2. Reflection symmetry - Wikipedia

   en.wikipedia.org/wiki/Reflection_symmetry

   In mathematics, reflection symmetry, line symmetry, mirror symmetry, or mirror-image symmetry is symmetry with respect to a reflection. That is, a figure which does not change upon undergoing a reflection has reflectional symmetry. In 2-dimensional space, there is a line/axis of symmetry, in 3-dimensional space, there is a plane of symmetry

3. Symmetry (geometry) - Wikipedia

   en.wikipedia.org/wiki/Symmetry_(geometry)

   A drawing of a butterfly with bilateral symmetry, with left and right sides as mirror images of each other.. In geometry, an object has symmetry if there is an operation or transformation (such as translation, scaling, rotation or reflection) that maps the figure/object onto itself (i.e., the object has an invariance under the transform). [1]

4. Point groups in three dimensions - Wikipedia

   en.wikipedia.org/wiki/Point_groups_in_three...

   C i (equivalent to S 2) – inversion symmetry; C 2 – 2-fold rotational symmetry; C s (equivalent to C 1h and C 1v) – reflection symmetry, also called bilateral symmetry. Patterns on a cylindrical band illustrating the case n = 6 for each of the 7 infinite families of point groups. The symmetry group of each pattern is the indicated group.

5. Symmetry - Wikipedia

   en.wikipedia.org/wiki/Symmetry

   The role of symmetry in grouping and figure/ground organization has been confirmed in many studies. For instance, detection of reflectional symmetry is faster when this is a property of a single object. [29] Studies of human perception and psychophysics have shown that detection of symmetry is fast, efficient and robust to perturbations.

6. Rotations and reflections in two dimensions - Wikipedia

   en.wikipedia.org/wiki/Rotations_and_reflections...

   These equations can be proved through straightforward matrix multiplication and application of trigonometric identities, specifically the sum and difference identities.. The set of all reflections in lines through the origin and rotations about the origin, together with the operation of composition of reflections and rotations, forms a group.

7. AOL Video - Serving the best video content from AOL and ...

   www.aol.com/video/view/how-to-identify-if-a...

   The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

8. List of spherical symmetry groups - Wikipedia

   en.wikipedia.org/wiki/List_of_spherical_symmetry...

   There are five fundamental symmetry classes which have triangular fundamental domains: dihedral, cyclic, tetrahedral, octahedral, and icosahedral symmetry. This article lists the groups by Schoenflies notation , Coxeter notation , [ 1 ] orbifold notation , [ 2 ] and order.

9. The Property Brothers Fear Trump's Tariffs Could Send ... - AOL

   www.aol.com/property-brothers-fear-trumps...

   HGTV home renovation stars Jonathan and Drew Scott – best known as the Property Brothers – are fearful that Trump’s proposed tariffs could send construction costs soaring. The brothers ...