Warp schrieb:

>> If you say "the room is ten feet square", you're saying the room is a square 
>> ten feet on a side. Hence, 100 square feet.
> 
>   Of course such an expression is quite incorrect, technically speaking.
> Squares cannot be measured in feet or meters. The *sides* of the squares can.

It is only incorrect if you're in nitpicking mode and the speaker didn't 
explicitly define the expression.

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