There is no such thing as a "square acre" an acre is already an area measurement. 1 square mile is 640 acres.
An acre has a total of 43,560 square feet. You divide the number of square feet by that and you get the number of acres. This gives you an answer of .358 acres.
If the question was "0.45 acres equals how many square feet the answer would be: 0.45 acre = 19 602 square feet If the question was "45 acres equals how many square feet the answer would be: 45 acre = 1 960 200 square feet
80 acresYou can do all your calculations here http://www.answers.com/square%20milewith the "Unit Conversions"
125 feet by 500 feet equates to 1.43 acres.
One acre has 43,560 square feet. 125' x 125' = 15,625 square feet 15,625 sq ft / 43,560 sq ft = .3587 acres
125 feet by 375 feet = 46,875 square feet 1 acre = 43,560 square feet, so 46,875 square feet = 1.076 acres
250 yards long by 125 yards wide is 31,250 square yards or 6.46 acres.
One acre is 43,560 square feet or 4840 square yards. The conversion would be .542 acres.
0.125 acres = 5,445 square feet.
One acre is 43,560 square feet. The conversion would be .201 acres.
1 acre = 43,560 square feet.190' x 125' = 23,750 square feet = 0.5452 acre (rounded)