square feet is best understood (for me) in terms of tiles. one tile is a foot long and a foot wide. If you tile a floor with these tiles and you notice that one side of the floor (lenghtwise) is fifteen tiles long and the other side is fifteen tiles across. this means that the room is 15X15 tiles. since our handydandy tiles are 1X1 (recall one foot by one foot) this means that our floor is actually 15X15 square feet. >> don't forget that Ft. squared is math terminology for ft. X ft. (or 15ft.x 15ft.) The dimensions of a room that is 15ft. sq. would probably be around 4X4ft. that is ittsybittsy
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