Determine if each figure is a net of a polyhedron and name the shape if applicable.

1. Yes, it is a net of a cube.
2. No, it is not a net of a polyhedron (it has two circles and a rectangle, which could be a cylinder, but the net is incomplete or incorrect for a polyhedron).
3. Yes, it is a net of a cube.
4. No, it is not a net of a polyhedron (it has a cone and a circle, which is not a polyhedron).
5. Yes, it is a net of a cube.
6. No, it is not a net of a polyhedron (it is a star-like shape, not a valid polyhedron net).
7. Yes, it is a net of a tetrahedron.
8. No, it is not a net of a polyhedron (it has a circle and a rectangle, which could be a cylinder, not a polyhedron).
9. No, it is not a net of a polyhedron (it has a hemisphere and a circle, not a polyhedron).