# Hanegraaf's Rectangular Block of Size 2×1×1 to a Cube Dissection

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This Demonstration gives Hanegraaf's six-piece dissection of a rectangular block of size 2×1×1 to a cube.

Contributed by: Izidor Hafner (March 2011)

Based on the work of: Greg N. Frederickson

Open content licensed under CC BY-NC-SA

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## Details

Hanegraaf (1989) improved Wheeler's (1935) seven-piece dissection and uses two P-slides. See G. N. Frederickson, *Dissections: Plane & Fancy*, New York: Cambridge University Press, 1997 pp. 236–237.