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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. "
How to Become Quick at Figures: Comprising the Shortest, Quickest, and Best ... - Page 115
by D. M. Garret - 1886 - 190 pages
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Standard Arithmetic: Embracing a Complete Course for Schools and Academies

William James Milne - Arithmetic - 1892 - 440 pages
...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. mi. sq. mi. A. sq. rd. sq. yd. sq. ft. sq. in. 1 = 640 = 102400 = 3097600 = 27878400 = 4014489600 Scale....
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Arithmetic

George Albert Wentworth - Algebra - 1892 - 312 pages
...(sq. ft.). 9 square feet — 1 square yard (sq. yd.) 30i square yards — 1 square rod (sq. rd.). 160 square rods — 1 acre (A.). 640 acres = 1 square mile (sq. mi.). III. VOLUME. 1728 cubic inches (cu. in.) = 1 cubic foot (cu. ft.). 27 cubic feet = 1 cubic yard (cu....
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Robinson's New Rudiments of Arithmetic

Horatio Nelson Robinson - Arithmetic - 1892 - 236 pages
...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. mi. SURVEYORS' SQUARE MEASURE. 144. This measure is used by surveyors in computing the area or contents...
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Robinson's New Practical Arithmetic for Common Schools and Academies

Horatio Nelson Robinson - Arithmetic - 1892 - 430 pages
...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. mi. Artificers estimate their work as follows : By the square foot ; glazing and stone-cutting. By the...
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An Academic Arithmetic for Academies, High and Commercial Schools

Webster Wells - Arithmetic - 1893 - 382 pages
...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. mi.) It follows from the above that 1 acre = 43560 square feet. 10 square chains are equal to one acre....
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Elementary Arithmetic

John Williston Cook, Nebraska C. Cropsey - Arithmetic - 1893 - 314 pages
...(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. mi.). 13. A surface has two dimensions, length and breadth. A plane surface which has four square corners...
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Dubbs' Complete Mental Arithmetic: A Volume of Carefully Graded Exercises ...

Eugene L. Dubbs - Arithmetic - 1893 - 238 pages
...square feet - - - " 1 square yard, " sq. yd. 30^ square yards - - - "• 1 square rod, " sq. rd. 1 60 square rods - - - " 1 acre, " A. 640 acres -•----" 1 square mile, " sq. mi. 1. How many square inches in 2 sq. ft.? in 5? in 10? 2. How many square feet in 4 sq. yd. ? in 7? in...
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Elements of Arithmetic: For Primary and Intermediate Classes in Public and ...

William James Milne - Arithmetic - 1893 - 252 pages
...9 square feet = 1 square yard (sq. yd.). SOt square yards j = le ro(J ( rd } 272} square feet / 160 square rods = 1 acre (A.). 640 acres = 1 square mile (sq. mi.). EXERCISES. 1. How many sq. in. are there in 2 sq. ft. ? In 3 sq. ft. ? 2. How many sq. ft. are there...
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A Business Arithmetic

1893 - 258 pages
...(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. mi.). 36 sq. mi. (6 miles square) = 1 Township ( Tp. ). CUBIC MEASURE. 241. Cubic Measure is used in measuring...
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Commercial Arithmetic

Oscar F. Williams - Arithmetic - 1894 - 330 pages
...sq. ft. 9 square feet = 1 square yard sq. yd. 30J square yards, or ) 1 rod d 272^ square feet ) 160 square rods = 1 acre A. 640 acres - = 1 square mile sq. mi. 36 square miles (6 miles square), = 1 township Tp. Scale, descending, 36, 640, 160, 30^, 9, 144; ascending,...
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