It states that for any. Usually this theorem is expressed as A 2 B 2 C 2. Set up the Distance Formula.
But for now lets see an example where we know the length of the sides and want to find the hypotenuse.
Formula to calculate the length of the hypotenuse. The method below is known as the pythagorean theorem. Its the side that sits opposite the 90-degree right angle. Usually this theorem is expressed as A 2 B 2 C 2.