What is the difference between a geometric constraint and a numetric constraint?

Dealing with engineering or CAD, a geometric constraint deals with constraints such as parallel or perpendicularity. A numeric constraint deals with distances and size. Width, length, and depth are examples of these.

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Geometric constraints are constant, non-numerical relationships between the parts of a geometric figure. Numeric constraints are number values, or What_is_the_difference_between_a_geometric_constraint_and_a_numeric_constraintequations that are used to control the size or location of a geometric figure :)