A triangular based pyramid has 4 faces and 4 vertices
cone
They are square based pyramids
cube and cuboid
Rectangular prism Cube
Well, the prism that you're talking about is an octagonal. If you look at the relationship between the number of vertices, you see that there's a pattern. If you have six vertices, you subtract one to get the number of faces. From there, you would add four to get your edges. With 8 vertices, you'd do the same thing except that instead of subtracting just one, you'd subtract two for the number of faces, then add not four but six to get your edges. For ten vertices, you'd subtract three for the faces and add eight for the edges. To find the other information, you either calculate backwards (which I totally think you can do with the info. i gave you) or draw a 3D figure net to pictorially explain the problem. Hope this helped!
any pyramid
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.
Any pyramid.
A cuboid, a parallelepiped.
If the number of vertices is not the same as the number of faces, it cannot be a pyramid.
13 vertices. A pyramid always has the same number of faces and vertices.
cone
A cube and a regular octahedron have the same number of edges, vertices, and faces. Both have 12 edges, 8 vertices, and 6 faces.
Sphere ( 0 faces , 0 edges , 0 vertices )
A rectangular dipyramid.
Any polyhedron can be deformed (its angles changed) without affecting the number of edges, vertices or faces.
They are square based pyramids