allerySliding every point of an object by the same distance leaves its shape unchanged under which symmetry?
ATranslational
BHelical
CRotational
DReflectional
Answer & Solution
Correct answer: A. Translational
1. Moving every point by the same distance is a translation.
2. If the shape does not change, the object has translational symmetry.
3. Helical adds a turn, rotational turns, and reflectional flips the shape.
_Source: Wikipedia, Symmetry, section In geometry_
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