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Such a shape cannot exist in ordinary 3 dimensional space.

Q: What shapes with 12 edges and 2 faces?

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Congruent shapes.

A cube and a regular octahedron have the same number of edges, vertices, and faces. Both have 12 edges, 8 vertices, and 6 faces.

Pentagon

According to Euler none; for all 3d shapes: Vertices + Faces = Edges + 2 ⇒ 12 + 8 = 19 + 2 ⇒ 20 = 21 So unless 20 does equal 21, no 3d shape has 8 faces, 19 edges and 12 vertices. Any 3d shape with 8 faces would be an octahedron.

Each cube has 6 faces, 12 edges and 8 vertices, so two [unconnected] cubes have 12 faces, 24 edges and 16 vertices (between them).

Related questions

2 solid shapes together have 8 faces, 12 edges 8 vertices

Congruent shapes.

A cube and a regular octahedron have the same number of edges, vertices, and faces. Both have 12 edges, 8 vertices, and 6 faces.

Pentagon

According to Euler none; for all 3d shapes: Vertices + Faces = Edges + 2 ⇒ 12 + 8 = 19 + 2 ⇒ 20 = 21 So unless 20 does equal 21, no 3d shape has 8 faces, 19 edges and 12 vertices. Any 3d shape with 8 faces would be an octahedron.

Faces= 2 edges=5 vertices=12 Faces= 2 edges=5 vertices=12

For all polyhedra: vertices + faces = edges + 2 The given fact is: edges = vertices + 10 → vertices + faces = vertices + 10 + 2 → faces = 12

It has 6 faces and 12 edges

Yes. A cube has 6 faces and 12 edges.

Each cube has 6 faces, 12 edges and 8 vertices, so two [unconnected] cubes have 12 faces, 24 edges and 16 vertices (between them).

A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. 12 faces, 24 edges, 16 vertices

no. a 2d square has only 1 face but a 3d square (cube) has 6 faces.