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Pythagorean Theorem Collection

The Pythagorean Theorem, named after the Ancient Greek philosopher Pythagoras (c. 580-500 BC), is a fundamental concept in mathematics that has stood the test of time

Background imagePythagorean Theorem Collection: Pythagoras and Euclid, 1437 (marble tile)

Pythagoras and Euclid, 1437 (marble tile)
7260238 Pythagoras and Euclid, 1437 (marble tile) by Della Robbia, Luca (1400-82); 83x69 cm; Museo dell Opera del Duomo, Florence, Tuscany, Italy; Photo © Raffaello Bencini

Background imagePythagorean Theorem Collection: Page from a Pythagorean manuscript translated by the humanist Marsilio Ficino (Marsilio Ficino)

Page from a Pythagorean manuscript translated by the humanist Marsilio Ficino (Marsilio Ficino)
BEN5464413 Page from a Pythagorean manuscript translated by the humanist Marsilio Ficino (Marsilio Ficino) the Florentine (1433-1499), ms. plut. 21. 8, c. 85 v

Background imagePythagorean Theorem Collection: Portrait of Pythagoras (Pythagoras), Greek philosopher, mathematician and scientist (560-480 BC)

Portrait of Pythagoras (Pythagoras), Greek philosopher, mathematician and scientist (560-480 BC)
NWI4947231 Portrait of Pythagoras (Pythagoras), Greek philosopher, mathematician and scientist (560-480 BC); (add.info.: Portrait of Pythagoras (Pythagoras), Greek philosopher

Background imagePythagorean Theorem Collection: Representation de Pythagore (-6eme siecle) - in 'Cosmographie ' de Julius Solinus

Representation de Pythagore (-6eme siecle) - in "Cosmographie " de Julius Solinus. Manuscrit du 14eme siecle
GIA5036520 Representation de Pythagore (-6eme siecle) - in "Cosmographie " de Julius Solinus. Manuscrit du 14eme siecle.; (add.info)

Background imagePythagorean Theorem Collection: Portrait of Pythagoras (around 570 - around 480 BC), Greek mathematician and philosopher

Portrait of Pythagoras (around 570 - around 480 BC), Greek mathematician and philosopher
XEE5031010 Portrait of Pythagoras (around 570 - around 480 BC), Greek mathematician and philosopher; (add.info.: Portrait of Pythagoras (around 570 - around 480 BC)

Background imagePythagorean Theorem Collection: Pythagoras (c. 570-around 480 BC), Greek mathematician and philosopher

Pythagoras (c. 570-around 480 BC), Greek mathematician and philosopher. Detail of a page of a manuscript representing
BEN5464408 Pythagoras (c. 570-around 480 BC), Greek mathematician and philosopher. Detail of a page of a manuscript representing the allegories of arithmetic and geometry

Background imagePythagorean Theorem Collection: Page of a manuscript representing the allegories of Arithmetic and geometry (manunscript)

Page of a manuscript representing the allegories of Arithmetic and geometry (manunscript)
BEN5464411 Page of a manuscript representing the allegories of Arithmetic and geometry (manunscript) by Unknown Artist, (14th century); Biblioteca Nazionale Centrale, Florence

Background imagePythagorean Theorem Collection: Pythagoras of Samos (engraving)

Pythagoras of Samos (engraving)
1700841 Pythagoras of Samos (engraving) by French School; (add.info.: Pythagoras of Samos (c.ÔÇë570 - c.ÔÇë495 BC) was an ancient Ionian Greek philosopher and the eponymous founder of Pythagoreanism

Background imagePythagorean Theorem Collection: Boethius and Pythagoras of Samos (engraving)

Boethius and Pythagoras of Samos (engraving)
1700775 Boethius and Pythagoras of Samos (engraving) by French School; (add.info.: Anicius Manlius Severinus Boethius, commonly known as Boethius (c)

Background imagePythagorean Theorem Collection: Pythagoras (wood engraving)

Pythagoras (wood engraving)
1728911 Pythagoras (wood engraving) by French School; (add.info.: Pythagoras (6th century BC) Greek mathematician)

Background imagePythagorean Theorem Collection: Pythagorean theorem, 16th century C017 / 8002

Pythagorean theorem, 16th century C017 / 8002
Pythagorean theorem, 16th century. This theorem, named for 6th-century BC Ancient Greek mathematician Pythagoras, states that in a right-angled triangle

Background imagePythagorean Theorem Collection: Pythagoras and Egyptian priests

Pythagoras and Egyptian priests
Pythagoras (c.580-c.490 BC), Ancient Greek philosopher, with Egyptian priests. Pythagoras is thought to have studied in Egypt for 21 years

Background imagePythagorean Theorem Collection: Pythagoras, Ancient Greek philosopher

Pythagoras, Ancient Greek philosopher
Pythagoras (c.580-c.490 BC), Ancient Greek philosopher. Pythagoras is most famous for the theorem, a mathematical proof concerning triangles, that is named after him

Background imagePythagorean Theorem Collection: Pythagoras (c. 580-500 BC)

Pythagoras (c. 580-500 BC)
Pythagoras founded a secretive, mystic cult which tried to describe the universe in terms of numbers. He found that there is no whole fraction or rational number that is the square root of 2


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The Pythagorean Theorem, named after the Ancient Greek philosopher Pythagoras (c. 580-500 BC), is a fundamental concept in mathematics that has stood the test of time. This theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite to the right angle) is equal to the sum of the squares of the other two sides. Pythagoras, along with Euclid, played a significant role in developing this theorem and its applications. Their contributions can be seen through various historical artifacts such as marble tiles from 1437 and pages from ancient manuscripts depicting allegories of Arithmetic and Geometry. Engravings featuring Pythagoras himself further highlight his importance in mathematical history. One engraving shows him alongside Boethius, another influential figure who expanded on Pythagorean ideas. These depictions serve as reminders that Pythagoras was not only a mathematician but also an esteemed philosopher who sought knowledge beyond numbers. His encounters with Egyptian priests are well-documented and suggest his interest in different cultures' mathematical practices. Even though centuries have passed since these events occurred, we still study and apply Pythagorean principles today. From architecture to engineering, this theorem remains essential for calculating distances or determining angles accurately. Whether it's through ancient engravings or manuscript pages dating back centuries ago, our fascination with Pythagoras and his eponymous theorem endures. As we continue to explore new frontiers in mathematics and beyond, let us remember those who laid its foundations – like Pythagoras – whose legacy continues to shape our understanding of geometry and arithmetic.