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The 'perfect acre' [2] is a rectangular area of 43,560 square feet, bounded by sides 660 feet (a furlong) long and 66 feet (a chain) wide (220 yards by 22 yards) or, equivalently, 40 rods by 4 rods. An acre is therefore 160 square rods or 10 square chains. The name perch derives from the Ancient Roman unit, the pertica.
Rood is an English unit of area equal to one quarter of an acre [2] or 10,890 square feet, exactly 1,011.7141056 m 2. A rectangle that is one furlong (i.e., 10 chains, or 40 rods) in length and one rod in width is one rood in area, as is any space comprising 40 perches (a perch being one square rod).
A furlong was 40 rods; an acre 4 by 40 rods, or 4 rods by 1 furlong, and thus 160 square rods; there are 10 acres in a square furlong. At the time, the Saxons used the North German foot , which was about 10 percent longer than the foot of the international 1959 agreement .
40 rods by 4 rods, 160 rods 2 (historically fencing was often sold in 40 rod lengths [49]) 1 ⁄ 640 (0.0015625) square mile (1 square mile is equal to 640 acres) Perhaps the easiest way for US residents to envision an acre is as a rectangle measuring 88 yards by 55 yards ( 1 ⁄ 10 of 880 yards by 1 ⁄ 16 of 880 yards), about 9 ⁄ 10 the ...
A is acre (640 to the square mile). R is rood: a ploughing strip 220 yards long (one furlong) and 5.5 yards (5.0 m) wide (one rod, pole or perch). Four roods equal one acre. P is a square pole [30.25 square yards (25.29 m 2)]; 40 square poles equal one rood.
According to Ahlquist, Topgolf’s grand opening is anticipated for the end of 2022. About 300,000 square feet of Class A office space have been added to the 73-acre development, with another ...
Since an acre measured 10 square chains in Gunter's system, the entire process of land area measurement could be computed using measurements in chains, and then converted to acres by dividing the results by 10. [2] Hence 10 chains by 10 chains (100 square chains) equals 10 acres, 5 chains by 5 chains (25 square chains) equals 2.5 acres.
He finds it more likely, however, that the "measure" to be multiplied thirty times is the width of the acre (that is, two long yokes) rather than a single long yoke. [10] Thus, at least in theory, [11] 2 rods × 30 rods = 1 acre ≈ 1,440 square imperial yards, [10] or 2 rods × 60 rods = 1 acre ≈ 4,320 square imperial yards [10] 4 acres (Med ...