3
A cube has three pairs of parallel faces:
I. Top / bottom
II. Front / back
III. Left side / right side
A cuboid has 3 pairs of parallel faces.
A cube has 12 edges, and each edge is parallel to one other edge. Since there are 12 edges, they can be grouped into 6 pairs of parallel edges. Therefore, a cube has 6 pairs of parallel sides.
A rectangular prism has six faces, and each pair of opposite faces is parallel to each other. Therefore, a rectangular prism has three pairs of parallel faces.
It can have one, two or three pairs of parallel faces.
3 pairs
there are three parallel faces in a cube
A cuboid has 3 pairs of parallel faces.
There are 257 topologically different convex octahedra. Many of these will have no parallel faces. It can have four pairs of parallel faces.
A cube has 12 edges, and each edge is parallel to one other edge. Since there are 12 edges, they can be grouped into 6 pairs of parallel edges. Therefore, a cube has 6 pairs of parallel sides.
3
A rectangular prism has six faces, and each pair of opposite faces is parallel to each other. Therefore, a rectangular prism has three pairs of parallel faces.
It can have one, two or three pairs of parallel faces.
3 pairs
3 pairs
21
Three.
Three pairs.