A triangular prism has 6 edges and so an octagonal prism will have 16 edges.
A triangular prism has 9 edges!
A Pentagonal Prism has 15 edges.
A square prism has 12 edges.
The rectangular prism has 12 edges.
A rectangular prism can have 12 edges, but not every shape with 12 edges is a rectangular prism.
A triangular prism has 6 edges and so an octagonal prism will have 16 edges.
There are 30 edges on a decagonal prism.
A heptagonal prism has 20 edges.
A rectangular Prism has 12 edges.
A rectangular prism has 12 edges.
A triangular prism has 9 edges!
A Pentagonal Prism has 15 edges.
A square prism has 12 edges.
The rectangular prism has 12 edges.
A rectangular prism has 12 edges but I don't know about a regular prism.
A triangular prism has 9 edges.