What type of constraints can be used to control geometry in sketches?

Geometric and dimensional constraints are essential tools in Autodesk Inventor that allow users to control the sketch geometry effectively. Geometric constraints define relationships between different sketch entities, such as making lines parallel, perpendicular, or tangent, and ensuring points lie on a specific path. These relationships help maintain the intended design intent regardless of changes made to the sketch.

Dimensional constraints, on the other hand, enforce specific measurements on the sketch geometry, such as lengths, angles, and radii. By specifying dimensions, the user can control the size and proportion of the objects within the sketch. This combination of geometric and dimensional constraints ensures that the design remains robust and adjusts automatically when modifications are made to any related geometry or dimensions.

Other options mention different types of constraints that are not typically applied within the context of sketching in Autodesk Inventor. While angular and linear constraints are types of dimensional constraints, they do not encompass the broader category of geometric relationships that are critical for design integrity. Structural and elastic constraints pertain to different fields and are not relevant to sketch control in Autodesk Inventor. Thus, the selection of geometric and dimensional constraints accurately captures the primary tools available for sketch geometry control in the software.