Books Books 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 David Eugene Smith - Arithmetic - 1905 - 414 pages
...(sq. ft.). 9 square feet = 1 square yard (sq. yd.). 30| square yards = 1 square rod (sq. rd.) . 16O square rods = 1 acre (A.). 640 acres = 1 square mile (sq. mi.). Carpenters, architects, and mechanics often write 8" for 8 in., and 5' for 5 ft. In this book both... ## First Book in Arithmetic

California. State Text-Book Committee - Mathematics - 1905 - 264 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.) 254. Written Problems. 1. Find the number of square feet in a walk 50 ft. long and 4 ft. wide. 2. How... ## The Foundations of Higher Arithmetic

Benjamin Franklin Sisk - Arithmetic - 1905 - 228 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.). 1 mile square = 1 section. 36 sections = 1 township. NOTE. — In measuring roofs, etc., 100 sq. ft.... ## Elementary Arithmetic

Charles W. Morey - Arithmetic - 1910 - 360 pages
...feet = 1 square yard (sq. yd.) 30^ square yards! or > =1 square rod (sq. rd.) 272^ square feet J 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. mi.) The side on which a figure seems to stand is its base. The height of a figure from the base is its... ## Intermediate Arithmetic

Charles William Morey - Arithmetic - 1911 - 274 pages
...feet = 1 square yard (sq. yd.) 30^ square yards! or > =1 square rod (sq. rd.) 272| square feet J 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. mi.) The side 011 which a figure seems to stand is its base. The height of a figure from the base is its... ## The Progressive Mental Arithmetic: Book I-, Book 1

John B. Gifford - Arithmetic - 1911 - 182 pages
...square yard (sq. yd.) 30| square yards! orroi * * i =1 square rod (sq. rd.) 272i square feet J ' 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. mi,), or section 36 square miles = 1 township (tp.) 100 square feet = 1 square (in roofs, floors, etc.) VOLUME... Charles W. Morey - Arithmetic - 1911 - 452 pages
...(sq. yd.) 30J square yards 1 °rr =1 square rod (sq. rd.) 272J square feet J ADVANCED ARITHMETIC 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. mi.) 1 A. = 160 sq. rd. = 4840 sq. yd. = 43,560 sq. ft. 1 mile square = 1 section (sec.) 6 miles square... ## The Mariners' Handbook: A Convenient Reference Book for Navigators ...

International Correspondence Schools - Naval art and science - 1911 - 450 pages
...foot 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. sq. mi. A. sg. rd. sq. yd. sq.ft. sq. in. 1=640 = 102,400-3,097,600-27,878,400-4,014,489,600 CUBIC... ## New York State Arithmetic: Years Five, Six, Seven, and Eight

George Albert Wentworth, David Eugene Smith - Arithmetic - 1912 - 370 pages
...foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 3O| square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. mi.) sq. ft. sq. in. sq. yd. 1 = 144 sq. rd. 1 = 9 = 1296 1 = 30} = 272} = 30,204 160 = 4840 = 43,560 =... 