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Euclidean geometry is a mathematical system attributed to the Alexandrian Greek mathematician Euclid, which he described in his textbook on geometry: the Elements. Euclid's method consists in assuming a small set of intuitively appealing axioms, and deducing many other propositions (theorems) from these.

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Surface dissection of regular tetrahedron to cube

I found a solution to this many years ago. Amazingly, this can be solved in as few as 2 pieces. See this webpage for the solution. You will also find a description in Greg Frederickson’s book “Dissect …
Gavin Theobald's user avatar