'Square' in the Bible

"You are to make the altar of acacia wood, seven feet six inches long, and seven feet six inches wide; the altar is to be square, and its height is to be four feet six inches.

It is to be square when doubled, nine inches long and nine inches wide.

Its length is to be a foot and a half and its width a foot and a half; it will be square. Its height is to be three feet, with its horns of one piece with it.

He made the incense altar of acacia wood. Its length was a foot and a half and its width a foot and a half -- a square -- and its height was three feet. Its horns were of one piece with it.

He made the altar for the burnt offering of acacia wood seven feet six inches long and seven feet six inches wide -- it was square -- and its height was four feet six inches.

It was square -- they made the breastpiece doubled, nine inches long and nine inches wide when doubled.