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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. "
A Grammar Shcool Arithmetic - Page 174
by George Albert Wentworth - 1886 - 372 pages
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John Heywood's Manchester readers. [With] Key, pt.1,2, Book 4

John Heywood (ltd.) - 1871 - 200 pages
...Every fourth year contains 366 days, and is called Leap Year. SQUARE MEASURE. 144 square inches make 1 square foot sq. ft. 9 square feet.. 1 square yard sq. yd. 30J square yards 1 square rod, pole, or perch sq.po. 40 perches .... 1 rood r. 4 roods 1 acre a. 040...
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Robinson's Progressive Practical Arithmetic: Containing the Theory of ...

Horatio Nelson Robinson, Daniel W. Fish - Arithmetic - 1871 - 384 pages
...plastering, paving, &c. 12 in. = 1 ft. TABLE. 144 square inches (sq. in.) make 1 square foot, marked sq. ft. 9 square feet " 1 square yard, " sq. yd. 30^ square yards " 1 square rod, " sq. rd. 40 square rods " 1 rood, " R. 4 roods " 1 acre, " A. 640 acres " 1 square...
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The principles of arithmetic

Daniel O'Sullivan - 1872 - 366 pages
...the Mint, one at the Royal Observatory, and one at the house of the Royal Society. SURFACE OR AREA. 144 Square Inches (sq. in.) = 1 Square Foot (sq. ft.) 9 Square Feet = 1 SQUARE YAUD (sq. yd.) 30^ Square Yards = 1 Square Perch (sq. per.) 40 Square Perches = 1 Rood (r.) 4 Roods*...
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New Rudiments of Arithmetic: Combining Mental and Slate Exercises for ...

James Bates Thomson - Arithmetic - 1872 - 236 pages
...yards, square feet, and square inches. . TABLE. 144 square in. (sq. in.) arc 1 square foot, sq.ft. 9 square feet " 1 square yard, sq. yd. 30^ square yards, or ) ( 1 sq. rod, perch, 2 72-J square feet, ) 1 or pole, S^' r' 160 sq. rods " 1 acre, A. 640 acres "...
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The science and art of arithmetic, by A. Sonnenschein and H.A. Nesbitt.d Pt.1

Adolf Sonnenschein - 1873 - 194 pages
...... = 1 nail (nl. ) 9 ,, (4 nails) = 1 quarter (qr. ) 36 „ (4qrs.) = 1 yard (yd.) SQUARE MEASURE. 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30t square yards = 1 square pole (sq. pi.) 40 square poles = 1 rood (ro.) 4 roods (4840 yards) = 1...
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New Practical Arithmetic: In which the Science and Its Applications are ...

Henry Bartlett Maglathlin - Arithmetic - 1873 - 362 pages
...rectangle is equal to the product of the length by the breadth. Table. • 144 square inches (sq. in.) are 1 square foot, sq. ft. 9 square feet, 1 square yard, sq. yd. 30 square yards, 1 square rod or perch, P. 16O square rods or perches, 1 acre, A. 640 acres, 1 square mile, M. In surveying...
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The Illustrative Practical Arithmetic ...

George Augustus Walton - Arithmetic - 1873 - 348 pages
...inch. These are the units of SQUARE MEASURE. TABLE. 144 square inches (sq. in.) = 1 square foot, marked sq. ft. 9 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,...
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The Complete Arithmetic: Oral and Written, Volume 1

Daniel W. Fish - Arithmetic - 1874 - 296 pages
...having four right angles. A Square Inch is a square each side of which is 1 inch in length. TABLE. 144 Square Inches (sq. in.) — 1 Square Foot . ....9 Square Feet -— = 1 Square Yard .... sq. yd. 30 J Square Yards = 1 Square Rod or Perch . sq. rd., P. 160 Square Rods = 1 Acre A. sq. mi. A. sq. rd....
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A Higher Arithmetic

George Payn Quackenbos - Arithmetic - 1874 - 444 pages
...each a foot long. A Square Yard, a Square Rod, and a Square Mile, may be similarly defined. TABLE. 144 square inches (sq. in.), 1 square foot, sq. ft. 9 square feet, 1 square yard, sq. yd. 30J- square yards, 1 square rod, sq. rd. 40 square rods, 1 rood, . . . R. 4 roods, 1 acre, ... A. 640...
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First Book in Arithmetic: Including Oral and Written Exercises

Daniel W. Fish - Arithmetic - 1874 - 180 pages
...Surface or Square Measure is used in measuring surfaces ; as of land, boards, plastering, etc. TABLE. 144 Square Inches (sq. in.) = 1 Square Foot . . 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...
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