To find the length of the diagonal of a square, multiply the length of one side by the square root of 2: If the length of one side is x... The diagonals of a square intersect (cross) in a 90 degree angle. This means that the diagonals of a square are perpendicular.
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To find the length of the diagonal of a square, multiply the length of one side by the square root of 2: If the length of one side is x... The diagonals of a square intersect (cross) in a 90 degree angle. This means that the diagonals of a square are perpendicular.