Pythagorean theorem
In mathematics, the Pythagorean theorem or Pythagoras' theorem is a fundamental relation in Euclidean geometry between the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse is equal to the sum of... Wikipedia
Creator: Pythagoras
Field: Euclidean geometry
Generalizations: Law of cosines; Solid geometry; Non-Euclidean geometry; Differential geometry
Statement: The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c)