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central.edu/writing-anthology/2019/01/31/159

Jan 31, 2019 ... Another important postulate used in his proof of the Pythagorean theorem was Postulate 4: “All right angles are equal to one another” (Dunham ...

www.britannica.com/science/Pythagorean-theorem

This may be the original proof of the ancient theorem, which states that the sum of the squares on the sides of a right triangle equals the square on the hypotenuse  ...

www.maa.org/press/periodicals/convergence/mathematical-treasure-james-a-garfields-proof-of-the-pythagorean-theorem

Garfield's proof of the Pythagorean Theorem essentially consists of a diagram of a trapezoid with bases a and b and height a+b. He looked at the area of the ...

www.pbs.org/wgbh/nova/proof/puzzle/theoremsans.html

Demonstrate the Pythagorean Theorem. Think of each side of a right triangle as also being a side of a square that's attached to the triangle. The area of a square is ...

www.cs.mcgill.ca/~rwest/wikispeedia/wpcd/wp/p/Pythagorean_theorem.htm

Written sometime between 500 BC and 200 AD, the Chinese text Chou Pei Suan Ching (周髀算经), (The Arithmetical Classic of the Gnomon and the Circular Paths  ...

faculty.smcm.edu/sgoldstine/pythagoras.html

A Picture Proof of the Pythagorean Theorem. Both squares have sides of length a + b and therefore both have the same area. The purple region in each square ...

www.newyorker.com/tech/annals-of-technology/einsteins-first-proof-pythagorean-theorem

Nov 19, 2015 ... Steven Strogatz offers a walk-through of Albert Einstein's childhood proof of the Pythagorean theorem, and what it shows about his thinking on ...

mathbitsnotebook.com/JuniorMath/RightTriangles/RTpythagoreanProof.html

The theorem can be rephrased as, "The (area of the) square described upon the hypotenuse of a right triangle is equal to the sum of the (areas of the) squares ...

mathworld.wolfram.com/PythagoreanTheorem.html

Many different proofs exist for this most fundamental of all geometric theorems. The theorem can also be generalized from a plane triangle to a trirectangular ...

math.stackexchange.com/questions/803/what-is-the-most-elegant-proof-of-the-pythagorean-theorem

Some popular dissection proofs of the Pythagorean Theorem --such as Proof #36 on Cut-the-Knot-- demonstrate a specific, clear pattern for cutting up the figure's ...

www.mathsisfun.com/geometry/pythagorean-theorem-proof.html

Both Areas Must Be Equal ... DONE! Now we can see why the Pythagorean Theorem works ... and it is actually a proof of the Pythagorean Theorem. This proof ...