420ft*100ft = 42000 sq ft = 0.964 acres
42,000 Miles = 67,592.45km
67,592.448 kilometres.
There are no miles in any acres, and no acres in any miles.1 square mile = 640 acres
90 acres=0.141 square miles and I am sorry, but I do not know how many miles not squared are in 90 acres.
There is 0.234375 miles in 150 acres
2,560 Acres.
1,024,000 acres.
0.45625 square miles in 292 acres.
3 acres is equal to 0.0047 square miles.
There are 5280 feet in one mile. Therefore, 42000 feet is equal to 42000 / 5280 = 7 21/22, or 7 and twenty-one twenty-secondths, of a mile. Expressed as a decimal fraction, this is equal to 7.954 recurring (that is, 7.9545454...) miles.
38,000 acres = about 59.375 square miles.