blikubli lujvo

k1=b1 is a regular polyhedron [3 dimensional] with sides/surfaces k3=b3.

k3=b3 sides/surfaces should include number, size, and shape. See also: kubybli, bliku, kubli.

In notes:

x1 is a block [3-dimensional shape/form] of material x2, surfaces/sides x3.
b1=k1 is a regular polyhedron [3-dimensional] consisting of material b2 with surfaces/sides b3=k3.