asapscience: via Reddit user cgibbard: “The first transformation is the classic hinged dissection of an equilateral triangle into a square popularised by Dudeney. The Wallace-Bolyai-Gerwien theorem shows that any two polygons with equal area must
asapscience: via Reddit user cgibbard: “The first transformation is the classic hinged dissection of an equilateral triangle into a square popularised by Dudeney. The Wallace-Bolyai-Gerwien theorem shows that any two polygons with equal area must