Respuesta :

hcyarla

Answer:

7.   2 square root 234

8. 6 square root 2

Step-by-step explanation:

7. 12^2 + 12^2 = x^2

144+144=x^2

288=x^2

square root 288

8.

x^2 + 9^2 = 18^2

x^2+81=324

x^2=243

square root 243