Respuesta :

Hello!

This is a 45-45-90 triangle; 45-45-90 triangles' sides are in the ratio 1:1:[tex] \sqrt{2} [/tex].

Since the legs measure 7 units, the hypotenuse (x) measures [tex]7 \sqrt{2} [/tex].

Answer:
[tex]7 \sqrt{2} [/tex]