8
8
Apparently a rectangular hexagon has 8 sides but I don't think there is any difference
There are 6 sides on a rectangular prism. More properly it has 12 edges, 8 vertices and 6 faces.
Each has 6 flat sides and 8 vertices. The sides of a cube are all the same. The sides of a rectangular prism are not the same sometimes.
8 edges 6 sides
A rectangular prism has 6 sides and 8 vertices.
a rectangular pyramid rectangular base and 4 triangular sides = 5 faces
There are 6 sides on a rectangular prism.
A rectangular octagon has eight sides
There are 12 sides on a rectangular prism.
A rectangular pyramid has five sides