Two.
12. There are 4 edges on one base, 4 edges on the other base, and 4 edges joining the 2 quadrilateral bases.
6
A quadrilateral prism has 12 edges, 8 vertices and 6 faces.
Prism
Prism
A hexahedron is a 3D shape with 6 faces. It CAN be a prism whose base is a square. But that is only one example. It can also be a prism whose base is any quadrilateral. It can also be something like a pentagonal pyramid (i.e. the base is a pentagon and the sides are made up of 5 triangles.)
The number of faces in a prism is one face for each of the sides of its cross-section plus the two end faces. A quadrilateral prism has a quadrilateral as its cross-section. Therefore it has 4 + 2 = 6 faces.
It could be a pyramid with a quadrilateral base or a triangular prism. There are, of course, other related shapes that it could be.
2n.
A pentahedron can bea quadrilateral based pyramid which has 5 vertices, ora triangular prism which has 6 vertices.A pentahedron can bea quadrilateral based pyramid which has 5 vertices, ora triangular prism which has 6 vertices.A pentahedron can bea quadrilateral based pyramid which has 5 vertices, ora triangular prism which has 6 vertices.A pentahedron can bea quadrilateral based pyramid which has 5 vertices, ora triangular prism which has 6 vertices.
If you have a triangle, that has 3 sides and a square, otherwise known as a quadrilateral, has 4 sides. So a prism must have 10 sides!
That depends on the shape of the base.