Cubes, cuboids, Trapezoid prisms, octahedrons
four (4)
Trapezoid is 3D. The shadow of this shape is called Trapezium.
6 edges.
A pentagonal prism will have 15 edges.
No corners and two edges !
I believe it would have nine edges.
An 3d trapezoid
A trapezium has 1 face, 4 edges and 4 vertices.
22
15
12