Which of the following is not considered a face relationship in Solid Edge?

In Solid Edge, face relationships are used to define how different faces of parts or assemblies interact with each other in a 3D model. The face relationships such as co-linear, tangent, and parallel are used to establish specific geometric constraints that maintain a certain spatial configuration between faces.

Co-linear refers to the condition where two lines or edges lie along the same line, which is relevant when aligning faces. Tangent describes a situation where two curves or surfaces meet at a single point without crossing, important for ensuring smooth transitions between surfaces. Parallel establishes that two faces remain equidistant from one another, defining a consistent spacing.

The concept of an angle, on the other hand, does not pertain directly to face relationships but rather generally relates to the degree of rotation between two elements, which is commonly used in defining relationships between lines or edges in sketches, but not specifically faces in assemblies or parts. This distinction is crucial in selecting the correct relationships to apply to maintain the integrity of the model. Thus, angle does not fall under the category of face relationships in Solid Edge.