The Pythagorean theorem unlocks ancient secrets

The Pythagorean theorem, a cornerstone of geometry, reveals that in any right-angled triangle, the square of the longest side (hypotenuse) equals the sum of the squares of the other two sides (a² + b² = c²). This powerful principle, popularized by Pythagoras around 570-495 BCE, allows us to effortlessly calculate unknown distances. For example, a triangle with sides 3 and 4 will always have a hypotenuse of 5, because 3² + 4² = 5².