Normal (geometry)
In geometry, a normal is an object (e.g. a line, ray, or vector) that is perpendicular to a given object.
In geometry, a normal is an object (e.g. a line, ray, or vector) that is perpendicular to a given object.
In geometry, a normal is an object (e.g. a line, ray, or vector) that is perpendicular to a given object.
Source: Wikipedia "Normal (geometry)" · CC BY-SA 4.0
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