1. **Is the object in the shape of an annulus?**
   - **Answer:** Yes
   - **Reasoning:** An annulus is a ring-shaped object formed by two concentric circles. The images show an object with a central hole and an outer boundary, consistent with the definition of an annulus.

2. **Is the object extruded in one dimension?**
   - **Answer:** Yes
   - **Reasoning:** The object appears to have a consistent cross-sectional profile along one dimension, indicating that it is extruded. The thickness of the object remains uniform in all images, supporting the idea of extrusion in one dimension.