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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.
Hopkins and Underwood's Arithmetic: Book One-two - Page 251
by John William Hopkins, Patrick Healy Underwood - 1912 - 351 pages

## 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,...

## A system of arithmetic

John Husband (math. master, Berwick.) - 1841 - 126 pages
...being = 2J inches. SQUARE MEASURE. For estimating the contents of Surfaces. sq. in. 144 Square inches = 1 Square foot, sq. ft. 9 Square feet = 1 Square yard, sq. yd. 30£ Square yards = 1 Square pole. |J sq. po. 40 Square poles = 1 Rood, ro. 4 Roods = 1 Acre, ac. Note — The chain used in land-surveying...

## A New System of Arithmetic: In which is Explained and Applied to Practical ...

Calvin Tracy - Arithmetic - 1842 - 306 pages
...circumference. X. LAND OR SQUARE MEASURE. TABLE. 144 square inches(sq.in-) make I square foot, . marked sq. ft. 9 square feet .... " 1 square yard, " sq....30£ square yards ... " 1 square rod, . " sq. rd. 40 square rods .... " 1 square rood,. " R. 4 square roods ... " 1 acre, .... " A. 640 square acres...

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

Richard Frederick CLARKE (the Elder.) - 1844 - 194 pages
...of 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 System of Arithmetic: In which is Explained and Applied to Practical ...

Calvin Tracy - Arithmetic - 1845 - 298 pages
...circumference. X. LAND OR SQUARE MEASURE. TABLE. 144' square inches(^q.in.)maie 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 square rood, . " R. 4 square roods ... " 1 acre, .... " A. 640 square acres...

## Arithmetic: Designed for Academies and Schools, Uniting the Inductive ...

Charles Davies - Arithmetic - 1847 - 368 pages
...a square foot is equal to 12x12 = 144. TABLE. 144 square inches, sq. in. make 1 square foot, Sq.ft. 9 square feet - - 1 square yard, Sq. yd. 30\ square yards - - 1 square pole, P. 40 square poles 1 rood, - R. - - - 1 acre, - A. 4 roods 640 acres acre, 1 square mile, M....

## Practical arithmetic for the use of adults

P. Fletcher - Arithmetic - 1848 - 138 pages
...ell, 5 quarters. French ell, 6 quarters. SaUARE MEASURE. 144 square inches make 1 square foot, marked sq. ft. 9 square feet — 1 square yard — sq. yd. 30^ square yards — 1 square perch — sq. per. 40 square perches — 1 rood — rd. 4 roods — 1 acre — ac. 640 acres — 1...

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

Almon Ticknor - Arithmetic - 1848 - 124 pages
...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...