a square, a rectangular solid
A polyhedron with six faces is often called a cuboid. It is also called a rectangular parallelepiped or a rectangular hexahedron, or sometimes simply, a box.
In geometry, a rhomboid is a cube like three-dimensional figure with faces that are called rhombi. It has 6 rhombi faces, 12 edges and 8 vertices.
A hexahedron is a polyhedron with six faces. a 3-dimensional figure with 6 sides (like a cube or a die)
there are 6 sides : top and bottom = 2 + 4 sides = 6
a cube
A tetrahedron.
it is either a cube or a rectangular prism
It is a cube.
A cube
A rectangular prism has 6 vertices (or corners) and a rectangular base.
A cube. Each side is a square, and a cube has 6 sides.
a square, a rectangular solid
A cube
A cube or a cuboid would fit the given description
Hexagon
Triangular Prism Triangular Prism 5 faces, 9 edges 6 vertices