GeO2 exists in a number of structures, most commonly a hexagonal form that is built on corner sharing GeO4 tetrahedra and a tetragonal structure in the mineral argutite built from edge sharing GeO6 octahedra.
Which of these two GeO2 structures will be favored if the sample is prepared under high pressure conditions. In framing your answer, you should comment on the likely difference of Ge-O bond distances in each structure.
More preferred would be the form GeO6.
It can be assumed that the bonds will be less and with more energy.