BWM 2013 P6: Change the parallelogram to cube
Source:
June 8, 2014
geometryparallelogram3D geometry
Problem Statement
A parallelogram of paper with sides and is given. The distance between the longer sides is . The paper should be cut into exactly two parts in such a way that one can stick both the pieces together and fold it in a suitable manner to form a cube of suitable edge length without any further cuts and overlaps. Show that it is really possible and describe such a fragmentation.