 | George Albert Wentworth - Arithmetic - 1893 - 242 pages
...are squares having linear units for the lengths of their sides. TABLE. 144 square inches (sq. in.) = 1 square foot (sq. ft.). 9 square feet = 1 square yard (sq. yd.). 30} square yards, or 1 =ld rf 272} square feet / ; 160 square rods, or | = i «ere (A.). 10 square chains i 640 acres... | |
 | Henry Bartlett Maglathlin - Arithmetic - 1893 - 234 pages
...159- Surface or Square Measure is used in measuring surfaces. Table. 144 squa're inches (sq. in.) are 1 square foot, sq. ft. 9 square feet, 1 square yard, sq. yd, 30J square yards, 1 square rod or perch, P I60 square rods or perches, 1 acre, A. 640 acres, 1 square... | |
 | 1893 - 252 pages
...Square Measure or surface measure is used in computing areas or surfaces. TABLE. 144 square inches = 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... | |
 | Henry Bartlett Maglathlin - 1893 - 228 pages
...159. Surface or Square Measure is used in measuring surfaces. Table. 144 square inches (sq, in.) are 1 square foot, sq. ft. 9 square feet, 1 square yard, sq. yd, 30J square yards, 1 square rod or perch, P 160 square rods or perches, 1 acre, A. 540 acres, 1 square... | |
 | Gordon Augustus Southworth - Arithmetic - 1893 - 220 pages
...dimensions, length and breadth. They are used in measuring surfaces. TABLE. 144 square inches (sq. in.) = l 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. m.)... | |
 | William James Milne - Arithmetic - 1893 - 252 pages
...The angles of a square are called right angles. Angle. Square. TABLE. 144 square inches (sq. in.) = 1 square foot (sq. ft.). 9 square feet = 1 square yard (sq. yd.), 8>t square yards 1 =le rod ( rf } 272J square feet i 160 square rods = 1 acre (A.). 640 acres = 1 square... | |
 | George Albert Wentworth - Arithmetic - 1894 - 414 pages
...rate in miles per hour ? (One hour = 3600 seconds.) MEASURES OF SURFACE. 144 square inches (sq. in.) = 1 square foot (sq. ft.) . 9 square feet = 1 square yard (sq. yd.). 30} square yards, or") , , , , . 272i square feet } = 1 ^are rod (sq. rd.). 160 square rods, orj = 1 ^ 10 square chains... | |
 | Albert Newton Raub - Arithmetic - 1894 - 168 pages
...dimensions. In measuring surfaces the following table is used : TABLE. 144 square inches (sq. in.) = 1 square foot, sq. ft. 9 square feet = 1 square yard, sq. yd. 30} square yards, or ) . . - _ n-roi я r ~ l square rod or perch, rd. or P. 272i square feet jt • • . 160 square... | |
 | Oscar F. Williams - Arithmetic - 1894 - 364 pages
...1 yard. 3 X 3 ft. = a sq. ft. = 1 sq. yd. Table of Square Measure. 144 square inches (sq. in.) — 1 square foot sq. ft. 9 square feet -- = 1 square yard sq. yd. 212\ square feet.... } ' SC 1 U8 " w 8* KL 304 square yards, or) , dd 160 square rods = 1 acre A. 640... | |
 | George Edward Atwood - Arithmetic - 1894 - 396 pages
...ch. 80 chains = 1 mile . . . .mi. 140. Square Measure is used in measuring surfaces. 144 sq. in ..... =1 square foot . . sq. ft. 9 square feet . . . = 1 square yard. . sq. yd. 160 square rods . . = 1 acre .... A. 640 acres ..... = 1 square mile . . sq. mi. 141. A Section of... | |
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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. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. 
