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With A=5 B=2 C=7, you don't have a right-angled triangle (90° angle), that's why you get a wrong answer. The Pythagorean theorem isn't wrong, YOU are wrong!

Q: Why is the Pythagorean theorem incorrect?

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The Pythagorean theorem uses the right triangle.

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

You could use the Pythagorean Theorem and many triangles You could use the Pythagorean Theorem and many triangles

Pythagoras

pythogorous

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Oh yes, the Pythagorean Theorem has been proven.

The Pythagorean theorem uses the right triangle.

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

You can use pythagorean theorem twice to find the diagonal of a cube

the standard form of the Pythagorean Theorem is :a2 + b2 = c2

The Pythagorean theorem is a2 + b2 = c2

When the Scarecrow gets his brains, he recites the Pythagorean Theorem.

The Greek, Babylonian, Indian, and Chines knew and used 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)

The Pythagorean Theorem allows the mathematician to determine the value of the hypotenuse. The converse of the Pythagorean Theorem manipulates the formula so that the mathematician can use the values to determine that if the triangle is a right triangle.