|  1 |    initial version    |  
As you can see, the returned elements are vertices, with their own methods, like the ability to provide its neighbors in the polyhedron.
sage: v = vr[0]
sage: v
A vertex at (0, 20)
sage: type(v)
<class 'sage.geometry.polyhedron.representation.Vertex'>
 You can transform a vertex into a tuple as follows:
sage: tuple(v)
(0, 20)
 So, to do that for each element of the list, you can just use list comprehension:
sage: [tuple(v) for v in vr]
[(0, 20), (42/5, 16/5), (0, 6)]
 
 
                
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