A cuboid.
Hexahedron
cube
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cuboid
Any solid object with six faces is a hexahedron. A regular hexahedron (with 12 edges) is a cube where all the faces are squares An irregular hexahedron (with 12 edges) is a cuboid where two faces are equal squares and four are equal rectangles.
A pentagonal prism
A rectangular prism.
A rectangular prism.
Perhaps a rectangular prism
cube
Probably a pentagonal prism.
Rectangular Prism. It's lateral faces are 4 rectangles. It's bases are 2 squares.