In 1907, the English author and mathematician Henry Ernest Dudeney posed a puzzle: Can any equilateral triangle be cut into as few pieces as possible that will fit together to form a perfect square?

For over a century, a simple yet tricky math problem had continued to baffle experts. Mathematicians struggled to find the fewest number of pieces needed to cut an equilateral triangle and rearrange ...

Dudeney’s original solution for transforming an equilateral triangle into a perfect square through dissection involves only four pieces, a solution that has now been proved to be the optimal solution.

In his new book, "Dissections: Plane and Fancy," Greg N. Frederickson, professor of computer science, explores the challenges of geometric dissections, the mathematical art of cutting figures into the ...

Three-dimensional puzzle of an anatomical model that can be detailed about the structure of living organisms such as the heart and reproductive organs A new product of 3D anatomical puzzle which is ...

This dissection puzzle consists of five blue plastic pieces that can be arranged to form a square. It comes in a light green envelope with blue print. One mark on the envelope reads: KLM (/) ROYAL ...

Chop up a square into four pieces, and reassemble them into a triangle. This kind of geometric dissection puzzle delighted ancient Chinese scholars. Chemists have now created self-solving dissections.