Respuesta :

gmany

Answer:

7

Step-by-step explanation:

Look at the picture.

We have the triangle 45° - 45° - 90°. The sides are in ratio 1 : 1 : √2.

Therefore we have the equation:

[tex]x\sqrt2=7\sqrt2\qquad\text{divide both sides by}\ \sqrt2\\\\x=7[/tex]

Ver imagen gmany