 | George Wentworth, David Eugene Smith, Herbert Druery Harper - Mathematics - 1922 - 214 pages
...16|feet= 1 rod(rd.) 320 rods, or 5280 feet = 1 mile (mi.) 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.) CUBIC MEASURE 1728 cubic inches... | |
 | 1924 - 368 pages
...rods = 1 mile (mi.) 1 mile = 1,760 yd. = 5,280 ft. MEASURES OF SURFACE 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... | |
 | Earle Bertram Norris, Kenneth Gardner Smith - Arithmetic - 1924 - 280 pages
...ordinarily used in measuring areas : MEASURES OF AREA (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 640 acres = 1 square mile (sq. mi.) Often we know the area of... | |
 | Theodore Lindquist - Mathematics - 1920 - 258 pages
...cable length. 1.15 common miles = 1 knot (nautical mile). 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. mi.). SURVEYORS' TABLE... | |
 | International Correspondence Schools - Machine-shop practice - 1924 - 402 pages
...ch. 80 chains =1 statute mile mi. 1 mil = .001 inch MEASURES OF AREA 144 square inches (sq. in.) = 1 square foot sq. ft. 9 square feet =1 square yard sq. yd. 30i square yards = 1 square rod sq. rd. 272 i- square feet = 1 square rod 160 square rods = 1 acre... | |
 | Raleigh Schorling, John Roscoe Clark - Mathematics - 1925 - 332 pages
...yd. = 5280 ft. = 1.61 kilometers SQUARE MEASURE OR MEASURES OF SURFACE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30.25 square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile... | |
 | Thomas Jackson Durell, Harry Orrin Gillet, Fletcher Durell - Arithmetic - 1925 - 464 pages
...inches (in.) = 1 foot (ft.) 3 feet = 1 yard (yd.) MEASURES OF SURFACE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) MEASURES OF WEIGHT 16 ounces (oz.) = 1 pound (Ib.) 100 pounds = 1 hundredweight (cwt.) 2000 pounds... | |
 | John Charles Stone - Arithmetic - 1925 - 356 pages
...larger units, you will need the following table : Table of Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30£ square yards or 272-^ square feet = 1 square rod (sq. rd.) 160 square rods or 43,560 square feet... | |
 | Frank Morton McMurry, Charles Beverley Benson - Arithmetic - 1926 - 348 pages
...1760 yards = 1 mile 208 ft. 8i+ in. = length of side of square acre AREA 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 43560 square feet = 1 acre (A.) 640 acres = 1 square mile (sq. mi.) VOLUME 1728 cubic inches (cu. in.)... | |
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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. 
