It would contain 12. There are 4 on two different sides( the square sides) which adds up to 8, and 2 on each of the longer sides ( the sides that resemble a rectangle) which would add up to 12!
8
12 edges
12 edges 6 faces 8 vertices
A Rectangular prism has 8 vertices's 12 edges and 6 faces
6
12 4 edges on each end (8 total) where the rectangle side faces meet the square end faces and 4 edges the rectangular faces meet each other.
The Answer Is 4
Rectangular.
There are 30 edges on a decagonal prism.
A heptagonal prism has 20 edges.
A rectangular Prism has 12 edges.
The rectangular prism has 12 edges.