The Pythagorean theorem or Pythagoras' theorem is a relation in Euclidean geometry among
the three sides of a right triangle.
"The square of the hypotenuse is equal to the sum of the squares of the other two sides."
This theorem, applied in a right triangle, calculates one of the lengths according to the others. This theorem has the name of a mathematician and philosopher of ancient Greece, Pythagoras of Samos, even if the result was independently discovered in several other cultures long before.
In a right triangle, with the hypotenuse in C, we have:C² = A² + B²
Calculate the side of a right triangle from two known values :
Enter the two known values to know the third one.