A six faced 3d shape is called a cube.
A pentagonal pyramid.
A 3D shape that has 6 edges is called a hexagonal prism.
That 3D shape is called triangular pyramid.
It is an octahedron. There are 257 topologically distinct octahedra: with 6 to 12 vertices.
A hexagonal prism.
There is no such thing as a 3d hexagon.There cannot be a 3d shape with regular identical hexagons. A 3d shape with 6 faces is called a hexahedron, and there are several topologically different variants.
A hexahedron is the name for a 6 sided 3D shape.
cube
A cube is a 3D shape that has 6 faces of equal area.
A cube or a cuboid has 6 faces.
A triangular prism.