This striking design presents one of the most elegant visual proofs of the Pythagorean Theorem, traditionally attributed to the 12th-century Indian mathematician Bhaskara II.

According to legend, Bhaskara provided no written explanation for this diagram, offering only a single word of instruction: "Behold!" The proof relies on a clever geometric rearrangement: by placing four identical right triangles around a central square, we create a larger square. Through simple algebraic accounting of the areas, the famous relationship a^2 + b^2 = c^2 is revealed.