Point Symmetry
It looks the same Upside Down!
(... or from any two opposite directions*)
Point Symmetry
Point Symmetry is when every part has a matching part:
- the same distance from the central point
- but in the opposite direction.
It is also the same as "Rotational Symmetry of Order 2"
Note: Point Symmetry is sometimes called Origin Symmetry, because the "Origin" is the central point about which the shape is symmetrical.
Examples
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Playing Cards often have
Point Symmetry, so that they look the same from the top or bottom. |
Each of these letters has
Point Symmetry, too! |
*Same from Opposite Direction?
Yes, pick a direction, and anything with Point Symmetry will look the same from the opposite direction, too.
Example: When cut at 45° the two halves of this card are exactly the same.
In other words the view from 45°, and the opposite direction (which is 225°) are the same.
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