A flat pentagon. Or some kind of circle pentagon breed...
Cylinder
It is an octagonal prism
# of faces + # of edges + # of vertecies + 2
rectangular prism
Prism
A rather simplistic answer is: A cube or cuboid shape has (usually) 2 sides, 2 ends, 1 top and 1 bottom.
cylinder
Cylinder
Prism
It is an octagonal prism
A cuboid is a 3D shape that can be a cube or a rectangle, both having 2 ends, 2 sides, and a top and a bottom face.
a right prism
it is a decogonanon it is a decogonanon
Yes, and three rectangular faces.
cylinder: 3 faces, 2 edges, no vertex
# of faces + # of edges + # of vertecies + 2
rectangular prism