 | Charles Davies - Arithmetic - 1883 - 348 pages
...table. What are the units of the scale ? TABLE. 144 square inches, sq. in., make 1 square foot, Sq.ft. 9 square feet - - 1 square yard, Sq. yd. 30 J square yards - 1 square rod or perch, P. 40 square rods or perches - 1 rood, - R. 4 roods - - - 1 acre, - A. 640 acres - - 1 square... | |
 | George Albert Wentworth, Thomas Hill - Arithmetic - 1883 - 378 pages
...miles per hour ? (One hour = 3600 seconds.) nnn MEASURES OP SURFACE. 144 square inches (sq. in.) = 1 square foot (sq. ft.) . 9 square feet = 1 square yard (sq. yd.). 30} square yards, or") , . . . . n-rni tjr = 1 square rod (sq. rd.). 272J square feet J * \ i / 160 square... | |
 | Warren H. Sadler, William Russell Will - Arithmetic - 1885 - 422 pages
...surfaces ; such as land, boards, plastering, painting, paving, etc. Table. 144 square inches [sq. in.] = 1 square foot [sq. ft.]. 9 square feet = 1 square yard [sq. yd.]. 30J square yards = 1 pole, perch, or square rod [P. or sq. rd.]. 160 square rods = 1 acre [A.], 640... | |
 | George Albert Wentworth - Arithmetic - 1886 - 392 pages
...the number of linear units in its adjacent side, UNITS OF SURFACE. 16L 144 square inches (sq. in.) = 1 square foot (sq. ft.). 9 square feet = 1 square yard (sq. yd.). 30} square yards, or J _ 1 e rod ( rf } 272} square feet, ) J 160 square rods, or 1 =l acre (A . 10 square... | |
 | Edward Sylvester Ellis - Arithmetic - 1886 - 200 pages
...denomination, their product is the number of superficial units in the area. 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.... | |
 | Bruce Mervellon Watson - Arithmetic - 1922 - 294 pages
...square park of which each side is 107 feet. TABLE OF SURFACE 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. id.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile... | |
 | 1923 - 364 pages
...area of one of your blackboards. 11. Find the area of your schoolroom. 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30 j square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. mi.) 1 acre = 160 sq. rd. =... | |
 | 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 (sq.... | |
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SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. 
