Respuesta :

gmany

Look at the picture.

Use the Pitagorean theorem:

[tex]b^2=6^2+6^2\\\\b^2=36+36\\\\b^2=36\cdot2\to b=\sqrt{36\cdot2}\\\\b=\sqrt{36}\cdot\sqrt2\\\\b=6\sqrt2[/tex]

Ver imagen gmany