Zhao Shuang String Diagram: A Classic Geometric Proof of the Pythagorean Theorem

This example demonstrates the 'String Diagram' created by the ancient Chinese mathematician Zhao Shuang, used to intuitively prove the Pythagorean theorem. By constructing four congruent right triangles and a central small square, they are assembled into a large square. Using area relationships, the area of the large square equals the sum of the areas of the four right triangles and the central sm