Cube, if the hexahedron is normal.
hexahedron
Cube.
A rectangular prism or a hexahedron.
A regular hexahedron
hexahedron and by the way im in fith grade
hexahedron is the name of a 3d hexagon
cube
A hexahedron! Seriously, latin it out. Hexahedron (6-sided shape) I think we normally call those cubes.
Hexahedron
A polygon is a 2-dimensional shape whereas a hexahedron is 3-dimensional. Therefore a polygon that is a hexahedron could by called a geometric impossibility.
A hexahedron.