Respuesta :

Answer:

The answer to your question is the length of a side = 6[tex]\sqrt{2}[/tex]

Step-by-step explanation:

Data

Square with a diagonal of 12

In a square the legs measure the same so, leg = x

Process

1. Write the Pythagorean theorem

                   c² = a² + b²

2.- Substitute values

                   12² = x² + x²

3.- Simplify

                  144 = 2x²

                   144/2 = x²

                   72 = x²

                   x = √72

4.- Result

                   x = 6√2