It need not be. There are infinitely many Pythagorean triangles whose sides are not only rational, but whole numbers. For example, (3, 4, 5), (5, 12, 13), (7, 24, 25).
It does not.If you consider a right angled triangle with minor sides of length 1 unit each, then the Pythagorean theorem shows the third side (the hypotenuse) is sqrt(2) units in length. So the theorem proves that a side of such a length does exist. However, it does not prove that the answer is irrational. The same applies for some other irrational numbers.
The Pythagorean theorem uses the right triangle.
Oh yes, the Pythagorean Theorem has been proven.
There are 19 various aspects of Pythagoras theorem. Pythagorean Theorem (1) Pythagoras Theorem(2) Pythagorean Theorem (3) Pythagorean Theorem (4) Pythagoras Theorem(5) Pythagorean Theorem(6) Pythagrean Theorem(7) Pythagoras Theorem(8) Pythagorean Theorem (9) Hyppocrates' lunar Minimum Distance Shortest Distance Quadrangular Pyramid (1) Quadrangular Pyramid (2) Origami Two Poles Pythagoras Tree(1) Pythagoras Tree(2) Theorem by Pappus
the standard form of the Pythagorean Theorem is :a2 + b2 = c2
You can use pythagorean theorem twice to find the diagonal of a cube
The Pythagorean theorem is a2 + b2 = c2
The Greek, Babylonian, Indian, and Chines knew and used the Pythagorean Theorem.
When the Scarecrow gets his brains, he recites the Pythagorean Theorem.
The Pythagorean theorem gets its name from the ancient Greek mathematician Pythagoras. He was one of the first to offer proof of the theorem.
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pythagorean theorem was named from a greek mathemition called pythagorus (I think that's how you spell it)