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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

Intermediate Arithmetic: For Use in the Common Schools and Academies of the ...

Paul Allen Towne - Arithmetic - 1867 - 240 pages
...MEASURE is used in measuring surfaces, as land, plastering, etc. 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 . sq. r. 40 square rods " 1 rood . . . E. 4 roods " 1 acre ... A. 640...

New Practical Arithmetic in which the Science and Its Applications are ...

Henry Bartlett Maglathlin - Arithmetic - 1869 - 332 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. 30^ square yards, 1 square rod or perch, P. 160 square rods or perches, 1 acre, A. 640 acres, 1 square mile, M. In surveying...

The Illustrative Practical Arithmetic by a Natural Method ...

George Augustus Walton, Electa Nobles Lincoln Walton - Arithmetic - 1869 - 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 272 J- square feet = 1 square rod, " sq. r. 160 square rods = 1 acre, " A. 640 acres = 1 square mile,...

An Intellectual Arithmetic: With an Introduction to Written Arithmetic

George Augustus Walton, Electa N. L. Walton - Arithmetic - 1869 - 188 pages
...used for finding the area of surfaces, or whatever has length and breadth. TABLE. 144 square inches = 1 square foot, sq. ft. 9 square feet = 1 square yard, sq. yd. 304- square 3'ards, or ) .. •, •. 0-761 e ,' > = 1 square rod, sq. rd. 272 J square feet \$ 160...

The Farmers' and Mechanics' Manual: With Many Valuable Tables ...

Wilshire S. Courtney - Agriculture - 1869 - 532 pages
...of land, lumber, painting, paving, &c. 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., P. 40 square rods " 1 rood, or qr. acre, " R. 4 roods " l acre, " A. SCALE...

Chambers's Standard Arithmetical Exercises: (includes Parts I. to Iv. of ...

John Sturgeon Mackay - 1870 - 148 pages
...yard (yd.). .SQUARE MTiASUItH, Used for measuring surfaces or areas. 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 (sq. po.). 40 Square poles 1 rood (ro.). 4 Roods , 1 acre (ac.). 640 Acres 1 square mile....

The science and art of arithmetic, by A. Sonnenschein and H.A. Nesbitt.d Pt.1

Adolf Sonnenschein - 1870 - 206 pages
...(in.) ... = 1 nail (nl.) 9 ,, (4 nails) = 1 quarter (qr.) 36 ,, (4 qrs.) = 1 yard (yd.) SQUARE MEASURE. 144 square inches (sq. in.) =1 square foot (sq. ft.) 9 square feet = 1 square yd (sq. yd. ) 30 J square yards = 1 square pole (sq. pl.) 40 square poles = 1 rood (ro. ) 4 roods (4840...

Robinson's Progressive Intellectual Arithmetic: On the Inductive Plan ...

Horatio Nelson Robinson - Arithmetic - 1863 - 190 pages
...In 123 nails, how many yards ? 31. TABLE OP LAND OR SQUARE MEASURE. 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, P. 40 square rods " 1 rood, R. 4 roods " 1 acre, A. 040 acres " 1...