I hate to break it to you but 210 feet square is the same as 210 square feet. Didn't you pay attention in school? As for "getting a ******* life already", math is my life!
All I can say is you must have a really shitty life. Try drawing a square box that is 210' and tell me how many square feet are in it. Do I need to define square for you?
square
[skwer]
NOUN
- a plane figure with four equal straight sides and four right angles.
- the product of a number multiplied by itself:
"a circle's area is proportional to the square of its radius"
- an L-shaped or T-shaped instrument used for obtaining or testing right angles:
"a carpenter's square"
- informal
a person considered to be old-fashioned or boringly conventional in attitude or behavior.
If you have any more questions ask your geometry teacher.
OK, now class, listen carefully! A square is a geometric shape, a plane figure with four equal sides and four right angles.
An acre is a measure of area measured in square units, like all other measures of area.
Acres are not square! They can be any dimensions you wish as long as the product results in 43,560 square feet.
I teach in a country school where if i said something akin to what you just posted, my agriculture students would laugh me right out of the school.