1. **Is the object triangular in shape?**
   - **Answer:** Yes
   - **Reasoning:** All three images show the object from different angles, and in each image, the object has a triangular shape with three sides and three vertices.

2. **Is the triangle a right triangle?**
   - **Answer:** Unclear
   - **Reasoning:** From the images provided, it is difficult to accurately determine the angles of the triangle to confirm if one of them is a right angle (90 degrees). The images do not provide a clear view or measurement that can confirm the presence of a right angle.

3. **Is the object marginally extruded?**
   - **Answer:** Yes
   - **Reasoning:** The images show that the object has a certain thickness or depth, indicating that it is not merely a flat triangle but has been extruded to some extent. This can be observed from the side views where the thickness is visible.