There is no such figure.
Octogon
The solid figure that has the same number of faces and vertices and has 8 edges is a cube. A cube has 6 faces, 8 vertices, and 12 edges, so it fits the description given.
pyrmid
cube
octahedron
This is a cube.
A cube is a solid figure with eight vertices and all faces of equal size.
There is no such figure.
Octogon
The solid figure that has the same number of faces and vertices and has 8 edges is a cube. A cube has 6 faces, 8 vertices, and 12 edges, so it fits the description given.
octahedron
octagonal pyramid
cube
pyrmid
cube
none