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Pythagorean-theorem

noun, Geometry.
1.
the theorem that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.
Pythagorean theorem
(pĭ-thāg’ə-rē’ən)
A theorem stating that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the lengths of the other sides. It is mathematically stated as c2 = a2 + b2, where c is the length of the hypotenuse and a and b the lengths of the other two sides.
Pythagorean theorem [(puh-thag-uh-ree-uhn, peye-thag-uh-ree-uhn)]

The theorem in geometry that, in a triangle with one right angle, usually called a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

Note: The theorem is often expressed a2 + b2 = c2.

Note: The simplest whole number expression of this theorem is called the 3, 4, 5 triangle. In a right triangle, if one side measures three units, and the second side measures four units, the hypotenuse must measure five units because 32 + 42 = 52; that is, 9 + 16 = 25.

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/ˈpɪθɪəs/ noun 1. 4th century bc, Greek navigator. He was the first Greek to visit and describe the coasts of Spain, France, and the British Isles and may have reached Iceland

• Pythia

[pith-ee-uh] /ˈpɪθ i ə/ noun, Greek Mythology. 1. the priestess of Apollo at Delphi who delivered the oracles. /ˈpɪθɪə/ noun 1. (Greek myth) the priestess of Apollo at Delphi, who transmitted the oracles n. “priestess of Apollo at Delphi,” 1842, from Greek pythia (hiereia) “(Priestess) of Pythian Apollo, from a variant form of Pythios, an […]