2006-07-23 10:57:32 · 8 answers · asked by todd_wuerdeman 1 in Science & Mathematics ➔ Engineering
There are 1760 yards to a mile. Therefore there is 1760^2 or 3097600 square yards to the mile. There are 4840 square yards to the acre.
3097600/4840=640
Therefore there are 640 acres to the square mile.
2006-07-23 11:05:19 · answer #1 · answered by eric l 6 · 1⤊ 0⤋
UK definition
The UK has a definition of the acre in The Units of Measurement Regulations 1995 as 4,046.856422 4 mÐÐ. This is equivalent to 43,560 square feet using the definition of foot in the same source.
US definition
The US has a definition of the acre in NIST Handbook 44 as 43,560 square feet. However, the US has two definitions of foot (international foot and survey foot) and thus two definitions of acre:
The international acre is 4,046.856422 4 mÐÐ. This is based on international foot of 0.3048 m.
The US survey acre is 4,046.87261 mÐÐ. This is based on the US survey foot of 1200/3937 m.
Related linear measurements
Two obsolete, but related, measurements are the acre's length and the acre's breadth.
1 acre's length = 1 furlong, 40 poles, or 220 yards
1 acre's breadth = 1 chain, 4 poles, or 22 yards
Conversion
An international acre is equivalent to exactly:
4 046.856 422 4 mÐÐ (SI unit)
40.468 564 224 a,
0.404 685 642 24 ha,
43 560 square feet,
4840 square yards,
160 square rods,
4 rood,
1/640 square mile,
a 10:1 rectangle of 1 furlong by 1 chain.
10 square chains.
An acre is equivalent to approximately: a square of side 208.71 feet (63.61 metres).
One square mile is 640 acres. A square parcel of land ÐÑ mile wide is 40 acres. A square parcel of land ÐÐ
mile on a side is 160 acres, the usual land tract under the Homestead Act in the United States. This results in common field lengths of ÐÐ
mile, with every rod in width equal to one acre.
2006-07-23 11:12:58 · answer #2 · answered by MykelO 2 · 0⤊ 0⤋
Yep, 1 square mile = 640 acres
2006-07-23 11:02:20 · answer #3 · answered by NannyMcPhee 5 · 0⤊ 0⤋
639.9974 acres
2006-07-23 13:23:11 · answer #4 · answered by slatibartfast 3 · 0⤊ 0⤋
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2006-07-23 11:07:39 · answer #5 · answered by dmb06851 7 · 0⤊ 0⤋
640, also called a section.
2006-07-23 11:00:54 · answer #6 · answered by retiredslashescaped1 5 · 0⤊ 0⤋
like a million
2006-07-23 12:06:57 · answer #7 · answered by Anonymous · 0⤊ 0⤋
around 650 or so i think
2006-07-23 11:01:05 · answer #8 · answered by Critical Mass 4 · 0⤊ 0⤋