 | 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 mile, " sq. mi. UNIT EQUIVALENTS... | |
 | Daniel Barnard Hagar - Arithmetic - 1871 - 220 pages
...foot, a square yard, a square rod, an acre and a square mile. TABLE. 144 square inches (sq. in.) are 1 square foot ...sq. ft. 9 square feet " 1 square yard . sq. yd. 30i square yards " 1 sq. rod or perch. . P. 160 sq. rods or perches '' 1 acre A. 640 acres " 1 square... | |
 | Henry Bartlett Maglathlin - 1871 - 336 pages
...rectangle is equal to the product of the length by the breadth. Table. 144 square inches (sq. in.) make 1 square foot, sq. ft. 9 square feet, 1 square yard, sq. yd. 30J square yards, 1 square rod or perch, P. 160 square rods or perches, 1 acre, A. 640 acres, 1 square... | |
 | 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... | |
 | 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.... | |
 | Daniel O'Sullivan - 1872 - 382 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*... | |
 | 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 by Gunter's... | |
 | 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... | |
 | 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,... | |
 | 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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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. 
