In a right triangle, which is a triangle where one of the angles measures 90°, the sum of the square of the sides equals the square of the hypotenuse, which is the side opposite the 90° corner. This equation is known as the Pythagorean Theorem and can be written as a2 + b2 = c2.There are a few common Pythagorean triangles where the lengths of each side is a whole number, known as Pythagorean triples
