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" Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30| square yards — 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. "
Concrete Geometry: Introductory to Formal Plane Geometry - Page 98
by Theophilus Nelson - 1902
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A New and Easy Introduction to the Mathematics: Containing. A system of ...

Ira Wanzer - Arithmetic - 1831 - 408 pages
..., ( Square Rod, 272 1 Square Feet, \ ( Perch,orPole, sq.rd. 40 Square Rods, 1 Rood, R. 4 Roods, or 160 square rods, 1 Acre, A. 640 Acres, 1 Square Mile, sq. m. Also, 10000 Square Links, or ) , , o, «• • ,„ ,,H i. it make 1 Square Cham. 16 Square Rods,...
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The Illustrative Practical Arithmetic by a Natural Method ...

George Augustus Walton, Electa Nobles Lincoln Walton - Arithmetic - 1869 - 350 pages
...square feet = 1 square yard, " sq. yd. 30^ square yards or 272 J- square feet = 1 square rod, " sq. r. 160 square rods = 1 acre, " A. 640 acres = 1 square mile, " sq. m. ILL. Ex. Change 5376 sq. ft. to units of higher denominations. OPERATION. 9)5376 30J ) 5 9 7 sq....
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An Intellectual Arithmetic: With an Introduction to Written Arithmetic

George Augustus Walton, Electa N. L. Walton - Arithmetic - 1869 - 188 pages
...yd. 304- square 3'ards, or ) .. •, •. 0-761 e ,' > = 1 square rod, sq. rd. 272 J square feet $ 160 square rods = 1 acre, ... A. 640 acres = 1 square mile, sq. m. 93. A Square is a four-sided figure which has all its sides equal, and all its corners or angles...
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The Illustrative Practical Arithmetic by a Natural Method with Dictation ...

George Augustus Walton, Electa N. L. Walton - Arithmetic - 1871 - 348 pages
...square feet = 1 square yard, " sq. yd, 30 J square yards or 27 2^ square feet = 1 square rod, " sq. r. 160 square rods = 1 acre, " A, 640 acres = 1 square mile, " sq. m. ILL. Ex. Change 5376 sq. ft. to units of higher denominations. OPERATION. 9)5376 30J ) 5 9 7 sq....
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The Illustrative Practical Arithmetic ...

George Augustus Walton - Arithmetic - 1873 - 348 pages
...square feet = 1 square yard, " sq. yd, 30£ square yards or 2 72J square feet = 1 square rod, " sq. r. 160 square rods = 1 acre, " A. 640 acres = 1 square mile, " sq. m. ILL. Ex. Change 5376 sq. ft. to units of higher denominations. OPERATION. 9)5376 30J ) 5 9 7 sq....
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First Book in Arithmetic: Including Oral and Written Exercises

Daniel W. Fish - Arithmetic - 1874 - 180 pages
...sq. ft. 9 Square Feet = 1 Square Yard . . sq. yd. 30J Square Yards = 1 Sq. Rod or Perch. sq. rd. ; P. 160 Square Rods = 1 Acre A. 640 Acres = 1 Square Mile . . sq. mi. 36 Square Miles = 1 Township . . . Tp. »q. mi. A. I = 640 = sq. rd. sq.yd. sq.ft. sq. in. 102400 =...
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The Complete Arithmetic: Oral and Written

Daniel W. Fish - Arithmetic - 1874 - 300 pages
...sq.ft. 9 Square Feet = 1 Square Yard . . sq. yd. 80} Square Yards = 1 Sq. Rod or Perch sq. rd.; P. 160 -Square Rods = 1 Acre A. 640 Acres = 1 Square Mile . . sq. mi. sq. mi. A. sq. rd. sq. yd. sq. ft. sq. in. 1 = 640 = 102400 = 3097600 = 27878400 = 4014489600 1 = 160...
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The Model Mental Arithmetic: Containing Oral Exercises for Graded and ...

Edgar Arthur Singer - Mental arithmetic - 1876 - 198 pages
...in.) are 1 square foot, sq.ft. 9 square feet " 1 square yard, sq. yd. 30 £ square yards " 1 square rod, sq. rd. 160 square rods " 1 acre, A. 640 acres " 1 square mile, sq. mi. In measuring land, IS square rods are 1 Bquare chain (sq. ch.), and 10 square chains are 1 acre. III....
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The Practical Arithmetic on the Inductive Plan: Including Oral and Written ...

William James Milne - Arithmetic - 1877 - 402 pages
...1 Square Foot . . . sq. ft. 9 Square Feet = 1 Square Yard . . . sq. yd. 30J Square Yards = 1 Square Rod . . . sq. rd. 160 Square Rods = 1 Acre A. 640 Acres = 1 Square Mile . . . sq. mi. sq. mi. A. sq.rd. sq. yd. sq.ft. sq.in. 1 = 640 = 102400 = 3097600 = 27878400 = 4014489600 1. Plastering,...
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Robinson's Progressive Practical Arithmetic: Containing the Theory of ...

Horatio Nelson Robinson, Daniel W. Fish - Arithmetic - 1877 - 372 pages
...(sq. in.) make 1 Square Foot sq. ft. 9 Square Feet " 1 Square Yard sq. yd. 30J Square Yards " 1 Square Rod sq. rd. 160 Square Rods " 1 Acre A. 640 Acres " 1 Square Mile sq. mi. UNIT EQUIVALENTS. sq. ft. sq. in. sq. yd. 1 = 144 sq. rd. 1 = 9 = 1296 A. 1 = 30J = 272J = 39204 sq....
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