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Its standardized value is 20.873 cm (8.2177 in) (9 pulgadas). Half of a palmo in Castile was called the coto , described as six fingers and defined as 10.4365 cm (4.10886 in). The ancient Romans had a similar, smaller unit called the palmus , which was 7.3925 cm (2.91043 in).
The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada [1].It equals the volume of a board that is one foot (30.5 cm) in length, one foot in width, and one inch (2.54 cm) in thickness, or exactly 2.359 737 216 liters.
In Puerto Rico, a cuerda is a traditional unit of land area nearly equivalent to 3,930 square meters, [1] [2] or 4,700 square yards, 0.971 acre, or 0.393 hectare (ha). The precise conversion is 1 cuerda = 3,930.395625 m 2. [2] The term "Spanish acre" instead has been used sometimes by mainlanders. [1]