There are 43,560 square feet in an acre.
There are 9 square feet in a square yard.
43,560 รท 9 = 4,840 square yards in an acre.
If you want a relatively square space, then the closest yardage would...
Square yards per acre.
An acre is a unit of area (so you never have to say "square acre.")
A yard, however, is a unit of distance. It's the square yard that is a unit of area. So, it is possible to...
If the acre is a circle (and the use of the word 'circumference' implies this, the other word would be perimeter) then 1 acre = 4,840 square yards Area = pi times r2 A circle with an area of 1 acre...