What are geometric constraints?

Geometric constraints refer to the constant, non-numerical relationships that establish how geometric figures interact with one another in a design. These relationships dictate how elements are fixed in relation to one another, ensuring that when one part of a design is modified, the others adapt according to the predefined relationships. For example, if a circle is constrained to be tangent to a line, moving the line will automatically adjust the circle's position while maintaining that tangency.

The other options do not accurately define geometric constraints. Variations in design influenced by contextual changes refer to adaptable designs but do not capture the essence of geometric constraints. Random elements added for visual interest pertain more to aesthetic choices in design rather than structural relationships. Finally, while numerical values that dictate size and shape are important in engineering, they are distinct from the concept of geometric constraints, which focus on relational, rather than purely quantitative, aspects of geometry.