 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.  Elementary Arithmetic - Σελίδα 255των John Williston Cook, Nebraska C. Cropsey - 1895 - 316 σελίδεςΠλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | Horatio Nelson Robinson - 1888 - 372 σελίδες
...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 sq. rd. ' 160 Square Rods " 1 Acre A. 640 Acres " 1 Square Mile sq. mi UNIT EQUIVALENTS.^ sq. ft. sq. in. eq. yd. 1 = 144 sq. rd. 1 = 9 = 1293 1 = 30J = 272| = 39204 160... | |
 | Warren H. Sadler - 1888 - 426 σελίδες
...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. mi.) REM. 1. — The unit of measure in estimating land is the acre ; and in estimating other surfaces,... | |
 | Henry Francis Harrington - 1888 - 126 σελίδες
...Square Measure is used in computing surfaces. 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.). 100 square rods = 1 acre (A.). 640 acres = 1 square mile (sq. mi.). 12 inches (in.) = 1 foot (ft.).... | |
 | Hoy D. Orton, Warren H. Sadler - 1888 - 342 σελίδες
...foot, 117. ft. 9 Square Feet 1 square yard, sq. yd. 301 Square Yards 1 sq. rod or perch, sq. rd.; P. 160 Square Rods 1 acre, A. 640 Acres 1 square mile, sq. mi. tg.mi. A. sg. rd. sq. yd. sq.ft. Sq. in. 1 =. 640 = 102400 = 3097600 = 27878400 =4014489600 1= 160=... | |
 | Henry Nathan Wheeler - 1888 - 314 σελίδες
...yard (sq. yd.). 2721 square feet ) , , , , . OA , * , > =1 square rod (sq. rd.). or oOJ square yards ) 160 square rods =1 acre (a.). 640 acres = 1 square mile (sq. m.). 40 sq. rds. = 1 rood. 1 sq. m. =1 section. 4 roods = 1 acre. 36 sections = 1 township. * One tenth... | |
 | George Albert Wentworth - 1889 - 476 σελίδες
...mi. 1 knot = 6086 ft. 1 league — 3 knots. 144 square inches (sq. in.) = 1 square foot (sq. ft.). 9 square feet = 1 square yard (sq. yd.). 30J square...acre (A.). 640 acres •- 1 square mile (sq. mi.). Measures sometimes used for Special Purposes. 1 rood — 40 sq. rds. 1 square of flooring or roofing... | |
 | Edward Sylvester Ellis - 1889 - 196 σελίδες
...the number of superficial units in the area. 144 square inches (sq. in. ) = J square foot, sq. ft. 9 square feet = 1 square yard, sq. yd. 30J square...rods = 1 acre, A. 640 acres = 1 square mile, sq. mi. 1. How many square rods in 10 A. ? - 2. How much will 5 sq. mi. of land cost at $40 an A. ? 3. How... | |
 | Caton's national business college, Buffalo, N.Y. - 1889 - 330 σελίδες
...square inches (sq. in. ) = 1 square foot (sq. f t. ) ; 9 square feet = 1 square yard (sq. yd.) ; 30| square yards = 1 square rod (sq. rd.) ; 160 square...1 acre (A.) ; 640 acres = 1 square mile (sq. mi.) 163. Surveyors' Square Measure is used by surveyors in measuring land. Scale : 10000 square links (sq.... | |
 | Hoy D. Orton - 1889 - 344 σελίδες
...foot, iq. ft. 9 Square Feet 1 square yanl, si/, yd. 30] Square Yards 1 s<|. rod or perch, «<j. rd.; P. 160 Square Rods 1 acre, A. 640 Acres 1 square mile, sq. mi. ly.mi. A. tij.rd. irj. yd. sq. ft. Sf). in. 1 — 640 = 102400 = 3097 riOO = 27 878400 =4014489600... | |
 | Charles Austin Hobbs - 1889 - 366 σελίδες
...(sq. ft.). 9 square feet = 1 square yard (sq. yd.). 30J square yards or j =1 rod ^ 272J square feet jv 160 square rods = 1 acre (A.). 640 acres = 1 square mile (sq. mi.). NOTE. A perch (P.) is a square rod, and a rood (R.) = 40 sq. rd. 10 square chains = 1 acre. A section... | |
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