A cube
A cube
None. A shape with four faces is a tetrahedron and that has 4 vertices, not 6.
A tetrahedron
A tetrahedron.
right parallelepiped
A cube
A cube
a rectangular prism with the same length and height but different width
None. A shape with four faces is a tetrahedron and that has 4 vertices, not 6.
A tetrahedron
The shape of a triangular based pyramid has 4 vertices, 6 edges and 4 faces
A Decagon. * * * * * There is no such shape in normal geometries. The only polyhedron with 4 faces is a tetrahedron and that has 6 edges.
A tetrahedron
A tetrahedron
A tetrahedron.
It is not clear whether the question means the shape has ten faces of which 4 are square and 6 are not, or 6 faces of which 4 are square. In the first case the shape would be a 16-hedron. The second is impossible.