IF the room is square, and the area of the floor is 169 ft2, then each side
of the floor is 13-ft long.
The room doesn't have to be square. If it isn't then there's no way to know
its dimensions. Its length and width can be any two numbers whose product
is 169. There are an infinite supply of such pairs of numbers.
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Side length squared is the formula for finding the area of a square.
The length of the side of a square with the given area of 81m squared is: 9 meters.
The length of its side squared.
Side length is 8 meters.
A squared+ B squared=C squared. find the square root of the answer and you get the longest side.