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" ЗОЯ square yards — 1 square rod or perch ; 40 square rods — 1 rood ; 4 roods — 1 acre ; 640 acres — 1 square mile ; 36 square miles (6 miles square) — 1 township. Time Measure: 60 seconds — 1 minute ; 60 minutes— 1 hour; 24 hours— 1... "
Die Entwicklung der chemischen Industrie in Deutschland seit dem Jahre 1875 ... - Page 77
by Hermann Schultze - 1916 - 59 pages
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A Complete System of Commercial Arithmetic, Its Application to the Principal ...

William Tate - 1837 - 358 pages
...MEASURE. 30J Square Yards make 1 Square Perch, Pole, or Rod. 16 Square Poles — 1 Square Chain. 40 Square Rods — 1 Rood. 4 Roods — 1 Acre. 640 Acres — 1 Square Mile. The square rod is 5J yards in length, and the same in breadth. The terms roods and acres are used only...
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An Elementary Treatise on Arithmetic: Designed as an Introduction to Peirce ...

Thomas Hill - 1845 - 110 pages
...square inches make 1 square foot. 9 square feet " 1 square yard. 121 square yards " 4 square rods. 40 square rods " 1 rood. 4 roods " 1 acre. . 640 acres " 1 square mile. A square inch is a square whose side is an inch in length. /. In measuring extension of three dimensions...
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The Speedy Calculator: Being a System of Arithmetic

Benjamin Naylor - 1850 - 334 pages
...mechanics' work. 272? square feet, or? , •, , , 30k square yards £ 1 sq. rod, pole, or perch. 40 rods 1 rood. 4 roods 1 acre. 640 acres 1 square mile. All surfaces, as land, flooring, &c., are measured by this measure. The measure of boards, floors,...
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The Common-school Arithmetic: a Practical Treatise on the Science of Numbers

Dana Pond Colburn - 1858 - 288 pages
...square foot. 9 square feet = 1 square yard. SOJsquareyards, \ or 272$ square > = 1 square rod. feet J 40 square rods = 1 rood. 4 roods = 1 acre. 640 acres = 1 square mile. ABBREVIATED. 144 sq. in. = 1 sq. ft. 9 sq. ft. = 1 sq. yd. 30} sq. yd. or] 272$ sq. ft. . . = lsq.rd....
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The Child's Book of Arithmetic, Designed for Use in Primary Schools

Dana Pond Colburn - 1859 - 84 pages
...square foot. 9 square feet = 1 square yard. 30 and one fourth ) , , > = 1 square rod. square yards ) 40 square rods = 1 rood. 4 roods = 1 acre. 640 acres = 1 square mile. B. All solids, that is, all bodies which have length, breadth, and thickness, are measured by Cubic...
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The First Book of Arithmetic

Dana Pond Colburn - 1860 - 186 pages
...square feet = 1 square yard. 9 sq. f t. = 1 sq. yd. 30 J square yards, or •> 111\ square feet, J 40 square rods = 1 rood. 4 roods = 1 acre. 640 acres = 1 square mile. J. CUBIC MEASUB.E. — Cubic Measure is used in measuring solids. , , Щ sq. yds. or -, > = 1 sq. rod....
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The Rudiments of Written Arithmetic: Containing Slate and Black-board ...

Horatio Nelson Robinson - 1866 - 200 pages
...inches (sq. in.) make 1 square foot, 9 square feet " 1 square yard, SOJ square yards " 1 square rod, 40 square rods " 1 rood, 4 roods " 1 acre, 640 acres " 1 square mile, UNIT EQUIVALENTS. sq. ft sq. yd. sq. rd. R. A. sq. mi, •q.ml. A. 1— E. " 1— 4— «q. rd. 1—...
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Intellectual and Practical Lightning Calculator: The Unity and Decimal System

John Alexander Henderson - 1882 - 232 pages
...square inches 1 square foot. 9 square feet 1 square yard." 30i square yards 1 square rod or perch. 40 square rods 1 rood. 4 roods 1 acre. 640 acres 1 square mile. US GOVERNMENT LAND MEASURE. | A township — 36 sections, each a mile square. A section — 640 acres....
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Practical Agriculture: A Brief Treatise on Agriculture, Horticulture ...

John Walter Wilkinson - 1900 - 396 pages
...inches = 1 square foot; 9 square feet = 1 square yard; 30J square yards = 1 square rod or perch; 40 square rods = 1 rood; 4 roods = 1 acre; 640 acres = 1 square mile; 36 square miles (60 miles square) = 1 township. Tune Measure. — 60 seconds = 1 minute; 60 minutes...
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The Metric System of Weights and Measures

United States. Congress. House. Committee on Coinage, Weights, and Measures - 1902 - 248 pages
...inches = 1 square foot. 9 square feet = 1 square yard. 30i square yards = 1 square rod or perch. 40 square rods = 1 rood. 4 roods = 1 acre. 640 acres = 1 square mile. The surface units are the linear units squared, and for land measures 100 square meters is called the...
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