 | John Husband (math. master, Berwick.) - 1841 - 126 σελίδες
...1 Square foot, sq. ft. 9 Square feet = 1 Square yard, sq. yd. 30£ Square yards = 1 Square pole. |J sq. po. 40 Square poles = 1 Rood, ro. 4 Roods = 1 Acre, ac. Note — The chain used in land-surveying is 66 ft. long, and is divided into 100 links, hence 10,000... | |
 | John Bonnycastle - 1851 - 314 σελίδες
...MEASURES OF SURFACE. 144 Square Inches make 1 Square Foot sq. ft. 9 Square Feet 1 Square Yard sq. yd. 30£ Square Yards 1 Square Pole sq. po. 40 Square Poles 1 Rood sq. rd. 4 Roods, or 4840 Sq. Yards 1 Acre ac. 640 Acres 1 Square Mile sq. mi. Also 100 square feet,... | |
 | John Sturgeon Mackay - 1870 - 138 σελίδες
...144 Square inches (sq. in.) make 1 square foot (sq. ft.). 9 Square feet 1 square yard (sq. yd.). 30$ Square yards 1 square pole (sq. po.). 40 Square poles 1 rood (ro.). 4 Roods , 1 acre (ac.). 640 Acres 1 square mile. lt is useful to remember that 10,000 Square links make 1 square chain. 10... | |
 | A G. Blake - 1885 - 218 σελίδες
...area. Marked. 144 square inches = 1 square foot. sq.ft. 9 square feet = 1 square yard. sq. yd. 3<3¿ square yards = 1 square pole. sq. po. 40 square poles = 1 rood. ro. 4 roods = 1 acre. ac. 640 acres = 1 square mile. sq. mi. (A square yard is a square whose side is one yard ш length.) REDUCTION.... | |
 | Macmillan & Co - 1901 - 802 σελίδες
...Square Inches make 1 Square Foot (Sq. Ft.). (Sq. Ins.) 9 Square Feet „ 1 Square Yard (Sq. Yd.). 30| Square Yards „ 1 Square Pole (Sq. Po.). 40 Square Poles „ 1 Rood (R.). 4 Roods „ 1 Acre (Ac.). 640 Acres „ 1 Square MUe (Sq. Mi.). In addition, since 1 chain =... | |
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Square inches (sq. in.) make 1 square foot (sq. ft.). 9 Square feet 1 square yard (sq. yd.). 30$ Square yards 1 square pole (sq. po.). 40 Square poles 1 rood (ro.). 4 Roods , 1 acre (ac.). 640 Acres 1 square mile. 