Dudeney's Dissection

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A hinged dissection, often referred to as a swing-hinged dissection or Dudeney dissection, is a geometric model in physics. It involves pieces that are connected through "hinged" points, forming a chain which allows for seamless transformation from one figure to another without cutting any connections. Overlapping of pieces is usually allowed during the folding and unfolding process, making it a wobbly-hinged dissection model.