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eppur_se_muova

(42,910 posts)

4. A surveyor's chain is 22 yards long. 80 chains make a mile.

Reply to dalton99a (Original post)

Mon Jun 22, 2026, 01:29 PM

Monday

That's why we have to remember those weird numbers -- 1760 yards = 5280 feet = 22 x 240 '

Ten square chains (NOT a square ten chains on a side), i.e. 4,840 square yards, make an acre, which is actually defined as one chain by one furlong (a furlong is 10 chains), or 1/640 of a square mile.

It's all so consistently systematic !

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