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In Argentina it is a hectare, 10,000 m 2. In most Central American countries it is about 7,000 m 2 (1.7 acres), varying between countries. In Belize it is 8,353 m 2 (2.064 acres). In Nicaragua it is 7,042.25 m 2 (1.74018 acres). If a vara is taken as 83.59 cm, then a manzana of 10,000 square vara s is equal to 6,987.29 m 2.
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]
A foot-lambert or footlambert (fL, sometimes fl or ft-L) is a unit of luminance in United States customary units and some other unit systems. A foot-lambert equals 1/π or 0.3183 candela per square foot, or 3.426 candela per square meter (the corresponding SI unit).
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.
At some time a value of 33 inches (838.2 mm) was adopted in California. [citation needed] In Texas, a vara was defined as 33 + 1 ⁄ 3 inches (846.67 mm), or 1 yard = 1.08 vara. [citation needed] The vara and the corresponding unit of area, the square vara, were introduced in the 19th century to measure Spanish land grants.
Comparison of 1 square foot with some Imperial and metric units of area. The square foot (pl. square feet; abbreviated sq ft, sf, or ft 2; also denoted by ' 2 and ⏍) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States, Canada, the United Kingdom, Bangladesh, India, Nepal, Pakistan, Ghana, Liberia, Malaysia, Myanmar, Singapore and Hong Kong.
The IEEE symbol for the cubic foot per second is ft 3 /s. [1] The following other abbreviations are also sometimes used: ft 3 /sec; cu ft/s; cfs or CFS; cusec; second-feet; The flow or discharge of rivers, i.e., the volume of water passing a location per unit of time, is commonly expressed in units of cubic feet per second or cubic metres per second.
The foot (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]