[D-fendr]

>>Prove what? That the hypotenuse value squared is exactly the sum of the squares of the sides?

Yes. To whatever degree of accuracy you use.

No.

Call Scientific American, the Pythagorean Theorem has been revoked.

Just when I thought you couldn't dig any deeper...

[kosta50]

Yes. To whatever degree of accuracy you use

The relationship is true only if the angle is a perfect 90-degree angle. Under any other circumstance it is not true.

Call Scientific American, the Pythagorean Theorem has been revoked

Maybe you need to call them to tell them it's not a theorem. A theorem applies to something based on axiomatic assumptions. In this case, that the angle is at absolute 90 degrees. Under any other circumstance the theorem is not true.