If the prism is based on regular decagons and it is a right prism, all 12 faces.
A triangular prism has 9 edges!
A Pentagonal Prism has 15 edges.
A square prism has 12 edges.
The rectangular prism has 12 edges.
If the prism is based on regular decagons and it is a right prism, all 12 faces.
There are 30 edges on a decagonal prism.
A heptagonal prism has 20 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 cube is a regular rectangular prism. Regular requires all its edges to be of the same length.
A triangular prism has 6 edges and so an octagonal prism will have 16 edges.
A triangular prism has 9 edges.
A hexagonal prism has 18 edges.