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Le pied est une unité de longueur correspondant à la longueur approximative d'un pied humain, c'est-à-dire un peu plus de trente centimètres. Ses symboles sont le signe ′ ( prime ), ou les abréviations ft, de l' anglais foot (pied), ou pi en français au Canada.
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1 ⁄ 12 of a pied du roi. This corresponds to the inch, a traditional English unit. pied du roi: 1 32.48 cm 1.066 ft Commonly abbreviated to pied, this corresponds to the foot, a traditional English unit. Known in English as the Paris foot (properly a separate, shorter unit), the royal foot, or French foot. toise: 6 1.949 m
Mar 19, 2015 · The most widely used pied, and the one used in Paris, was the pied du roi, 324.83938497 millimeters (12.789 inches) = 12 pouces = 1728 lignes. It is often called the pied of Paris. Legend has it that it is the length of Charlemagne’s foot. Another unit, the pied géométrique, was the same length but was divided into 10 pouces and 100 lignes.
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The foot ( pl. feet; standard symbol: ft) [1] [2] is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, ′, is commonly used to represent the foot. [3] . In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet.
SI base units. The SI comprises a coherent system of units of measurement starting with seven base units, which are the second (symbol s, the unit of time ), metre (m, length ), kilogram (kg, mass ), ampere (A, electric current ), kelvin (K, thermodynamic temperature ), mole (mol, amount of substance ), and candela (cd, luminous intensity ).
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