A question that I often receive from new land surveyors is How many feet is a square acre?
I am not quite sure why this stumps so many, but this is basically what I tell them with they ask.
A square enclosing one acre is approximately 69.57 yards, or 208 feet 9 inches (63.61 metres) on a side. As a unit of measure, an acre has no prescribed shape; any area of 43,560 square feet is an acre.
Keep in mind the following:
Because an acre is a measure of area, not length, it is defined in square feet. Anacre can be of any shape-a rectangle, a triangle, a circle, or even a star-so long as its area is exactly 43,560 square feet. The most standard shape for an acre is one furlong by one chain, or 660 feet by 66 feet.