Respuesta :

grace9269

Answer:

The answer is 6√2 inches

Step-by-step explanation:

Let

c = diagonal

a and b the sides of the square

c² = a² + b²

c = √(a² + b²)

c = √(6² + 6²)

c = √72

c = √(36 • 2)

c = 6√2

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