<ipe version="60023" creator="Ipe 6.0 preview 23" media="-321.5 -385 273.5 457">
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-144 96 m
-104 88 l
-64 96 l
h
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-144 96 m
-144 -8 l
-104 -24 l
-104 88 l
-144 96 l
-64 96 l
-104 88 l
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-64 96 m
-64 -8 l
-104 -24 l
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-144 96 m
-104 -24 l
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-104 88 m
-64 -8 l
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-64 96 m
-144 -8 l
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-104 -24 m
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<text stroke="black" pos="-48 80" type="minipage" width="144" height="24.896" depth="19.96" valign="top" size="10">any tetrahedron formed with the upper facet 
and any other vertex of the hole would violate
a facet of the polyhedron</text>
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-144 -8 m
-64 -8 l
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9.6455 0 0 9.6455 -83.2593 38.2222 e
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