[alexander_busek]

I think that’s a square less than 4 miles per side.

Correct!

640 acres per sq. mile.

10,000 divided by 640 = approx. 16 sq. miles = a square four miles by four miles.

Regards,

[oldasrocks]

I must have gone to the wrong school. A sq mile is 640 acres. 4 sq miles totals 2560 acres. 4 X 640.

Our farm must be a lot bigger than I thought it was. No wonder the taxes are so high. Your math would equal each sq mile at 2,500 acres. 4 miles X 4 miles would be 16 sq miles not 4.