|   | 1 |  initial version  | 
To get some autonomy, you can get informations on the Polyhedron constructor as:
sage: Polyhedron?
See in particular the ieqs parameter.
Once your polyhedron is defined, and assigned to the name, say P, you can use Tab completion:
sage: P.<TAB_COMPLETION>
to see all the methods available. You will see that there is a vertices method.
 Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
 
                
                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.