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Square Measure 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.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Robinson's New Practical Arithmetic for Common Schools and Academies - Page 171
by Horatio Nelson Robinson - 1892 - 416 pages

## Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - Arithmetic - 1842 - 306 pages
...breadth, gives its square measure, or, as it is sometimes called, its square contents, as in the following Table : 144 square inches [sq. in.] . make 1 square foot sq. ft. 9 square feet make 1 square yard sq. yd. 30£ sq. yd. or 272J sq. ft. . . make 1 square rod or pole. . . sq. r. 40...

## Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - 1843 - 320 pages
...breadth, gives its square measure, or, as it is sometimes called, its square contents, as in the following Table : 144 square inches [sq. in.] . make 1 square foot sq. ft. 9 square feet make 1 square yard sq. yd. 30J sq. yd. or 272^ sq. ft. . . make 1 square rod or pole. . . sq. r. 40...

## A System of Arithmetic, with the principles of logarithms; compiled for ...

Richard Frederick CLARKE (the Elder.) - 1844 - 194 pages
...Artificers' work ; and all dimensions of Length and Breadth only. THE TABLE. 1 44 Square 1nches (sq. in.) 1 Square Foot sq. ft 9 Square Feet 1 Square Yard sq. yd. 30J Square Yards, or > , 272J Square Feet..../ 1 Square Pole sq. po. 40 Poles 1 Rood rd. 4 Roods, or...

## A New Practical and Theoretical Arithmetic: In which in Addition to the ...

Horatio Nelson Robinson - Arithmetic - 1845 - 310 pages
...square measure is used in measuring land, or anything in which length and breadth are both considered. 144 square inches, sq. in,, . . . make 1 square foot, . sq. ft, 9 square feet 1 square yard,., so. yd. 30j square yards, 1 square pole, . P. 40 square poles, 1 rood, . . . R. 4 roods, 1 acre, ....

## Youth's Columbian Calculator: Being an Introductory Course on Arithmetic for ...

Almon Ticknor - Arithmetic - 1848 - 122 pages
...is used in measuring land, flooring, &c. ; it has respect to length- and breadth, but not to depth. 144 square inches (sq. in.) make 1 square foot sq. ft. 9 square feet " 1 square yard sq. yd. 30J square yards (or 272-î ) .. , , , square feet) Г 1 squ.rodorpole rp 40 square rods - - " 1 square...

## Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - Arithmetic - 1850 - 314 pages
...breadth, gives its square measure, or, as it is sometimes called, its square contents, as in the following Table : 144 square inches [sq. in.] . make 1 square foot. ........ sq. ft. 9 square feet make 1 square yard sq. yd. 30 j sq. yd. or 272? sq. ft. , . make 1 square rod or pole. . . sq. r. 40...

## Mental arithmetic; or, A concise system of commercial arithmetic

James Strachan (F.E.I.S.) - Arithmetic - 1852 - 92 pages
...The Scotch ell is a small fraction more than 37 inches. SQUARE, OK LAND MEASURE. 1 44 Square inches = 1 Square foot sq. ft.. 9 Square feet = 1 Square yard sq. yd. 30j Square yards = 1 Square pole sq. po. 40 Square poles = 1 Rood ro. 4 Roods = 1 Acre ac. One square...

## A Theoretical and Practical Arithmetic: Designed for Common Schools and ...

Daniel Leach - Arithmetic - 1853 - 626 pages
...40 = 1 5280 = 1760 = 320 = 8 15840 = 5280 = 960 = 24 Square Measure. 144 square inches (sq. in.) = 1 square foot, sq. ft. 9 square feet ;= 1 square yard, sq. yd. 30£sq. yds.,272Jsq. ft.,= 1 square rod, sq. r. 40 square rods = 1 rood, . . R. 4 roods — 1 acre,...