One acre (which is a square measure, so you should never say or write "square acre") is equal to 4,840 square yards.
By the way, you can use Google to find these simple conversions. Just type "1000 acres in square yards" in the search box (w/o the quotes).
This question cannot be answered sensibly. An acre is a measure of area, with dimensions [L2]. A foot is a measure of distance, with dimensions [L]. The two measure different things and basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.
There are 23,347.44 square feet in 536 of an acre.
One acre is 43,560 square feet.
0.1442 acre is 6,281.4 square feet.
1 acre is 43,560 square feet.
1 acre equals 43,560 square feets
Circle with 1000 ft radius: Area = pi*(radius^2) So 3.14159265 * (1000 ft)2 = 3141592.65 square feet Convert square feet to acres: 1 acre = 43560 square feet. 3141592.65 square feet / (43560 square feet/acre) = 72.1210434 acres.
1 acre = 43,560 square feet 1/2 acre = 21,780 square feet
There are 23,347.44 square feet in 536 of an acre.
1 acre = 43,560 square feet
One acre is 43,560 square feet.
0.1442 acre is 6,281.4 square feet.
1 acre is 43,560 square feet.
1 acre = 43,560 square feet
1/2 acre is 21,780 square feet.
43,560 square feet = 1 acre.
1 acre = 43,560 square feet
0.3 of an acre is 13068 square feet.