To determine the total number of faces on a specific 3D shape, I would need to know what the shape is. For example:
- A cube has 6 faces.
- A rectangular prism has 6 faces.
- A tetrahedron has 4 faces.
- A pyramid with a square base has 5 faces.
- A sphere has 0 faces.
If you can specify the shape in question, I can provide you with the total number of faces it has.