A dissection of rhombic triacontahedron
It is well known fact that the triacontahedron can be decomposed to 10 prolate and 10 oblate rhombohedra. In  we found a dissection of two rhombic dodecahedra to a cube, and we simplified the construction in . Here we give a decomposition of the triacontahedron to six halves of rhombic dodecahedron of the second kind and a cube. Decomposition of rhombic dodecahedra and the cube give a (1 x 1 x 2.5)- rectangular block. We can use Hanengraaf’s construction to get a cube [1, pg. 237].
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Faculty of Electrical Engineering, University of Ljubljana
, 1000 Ljubljana
 G. N. Frederickson, Dissections: Plane & Fancy, Cambridge U. Press, 1997
 I. Hafner, T. Zitko, A dissection of two rhombic dodecahedra of the 2. kind to a cube
 I. Hafner, T. Zitko, A dissection of quarter of rhombic dodecahedron of the second kind to a cube