plesiohedron
... that Euclidean space can be completely filled without overlaps by copies of any plesiohedron, a type of convex shape whose known examples have up to 38 sides?
... that Euclidean space can be completely filled without overlaps by copies of any <b id="mwBFs"><a href="./Plesiohedron" id="mwBFw" rel="mw:WikiLink" title="Plesiohedron">plesiohedron</a></b>, a type of convex shape whose known examples have up to 38 sides?