a hexagon
The solid shape/figure that has six rectangles as faces is called a rectangular prism. The general term for any shape with six faces, regardless of shape is a hexahedron.
cube
A Cuboid has 6 rectangular faces.
A cube has six faces and all are congruent squares.
A circle
triangle
cuboid
a pentagonal pyrimad
A cube satisfies that description.
A hexagon is a 2d shape with six sides, a hexahedron is a 3d shape with six faces.
A cube has six rectangular faces. * * * * * Strictly speaking, that is wrong. A cube has six SQUARE faces. A shape with exactly 6 rectangular faces is a cuboid.
A shape with six faces that altogether has 12 square faces is a cube. However, a single cube has only six square faces. If you are referring to a polyhedron with 12 square faces, that would be a cuboctahedron or a truncated octahedron, which have more complex structures. A cube cannot have 12 square faces; it only has 6.