Each face of a polyhedron is a polygon which has at least three straight sides; all the polygons of the polyhedron join along one of their sides to another polygon to form the edges of the polyhedron.
Now consider when you have two parallel faces of a polyhedron:
A tetrahedron has 4 faces which is less than 5 faces.
Thus two of the faces of a tetrahedron cannot be parallel.
The smallest polyhedron which can have a pair of parallel faces is a pentahedron with two triangular parallel faces and three quadrilateral faces joining them (for example a tetrahedron with one corner cut off by a plane parallel to the opposite face).
yeah it does * * * * * No, it does not. It has two pairs of parallel sides. One pair of parallel sides faces in one direction and the other pair of parallel sides faces in another direction.
trapezium
A cylinder
A trapezoid is a shape that has one pair of parallel faces, specifically in the case of a trapezoidal prism. This three-dimensional figure has two trapezoidal bases that are parallel, while its lateral faces are rectangular, creating perpendicular edges between the bases and the lateral faces.
It has no parallel faces because a tetrahedron is a triangular based pyramid with 4 faces, 6 edges and 4 vertices
No.
yeah it does * * * * * No, it does not. It has two pairs of parallel sides. One pair of parallel sides faces in one direction and the other pair of parallel sides faces in another direction.
trapezium
A cuboid is one of them.
No. it could only have one pair of parallel faces. The cross section is triangular.
Usually none, but it can have one pair.
A cylinder
A trapezoid is a shape that has one pair of parallel faces, specifically in the case of a trapezoidal prism. This three-dimensional figure has two trapezoidal bases that are parallel, while its lateral faces are rectangular, creating perpendicular edges between the bases and the lateral faces.
It has no parallel faces because a tetrahedron is a triangular based pyramid with 4 faces, 6 edges and 4 vertices
A pentagonal prism.
A triangle couldn't.
One pair because opposite cross-section faces are parallel to each other.