1). There is no such unit as a "square acre". The "acre" is a unit of area. It can have any shape.
2). A square with an area of 10 acres has a side with length 660 ft. (3 furlongs)
Their are 10 Square chains in an acre see http://www.answers.com/topic/chain-unit for more details
9/10 of an acre is 39,204 square feet.
1 acre = 43 560 sqft => 10 acres = 435 600 sqft or a square of 660ft of side.
6.27264 x 10 to the 6th power.6272640 sq in
10 square perch is 0.0625 acre.
4/10 of an acre is 17,424 square feet.
Their are 10 Square chains in an acre see http://www.answers.com/topic/chain-unit for more details
9/10 of an acre is 39,204 square feet.
About 10% (9.88421%) of an acre.
1 acre = 43 560 sqft => 10 acres = 435 600 sqft or a square of 660ft of side.
10 square chains = one acre
4/10 acre = 17,424 square feet.
Just under 10% of an acre.
2/10 (one fifth) of an acre is 8712 square feet. (745.78 square yards). 1 acre = 43560 square feet
10 acres is the same as about 4.05 hectares.
An acre's breadth is a historical term for a chain - the width of a single acre, which is defined as 10 square chains.
1 acre is 43,560 square feet. 10 acres is 435,600 sq ft.