Respuesta :

Answer:

x = 8.12

Step-by-step explanation:

36+x^2 = y^2

121 + x^2 = z^2

z^2 + y^2 = 289

(121+x^2)+(36+x^2) = 289

157 + 2x^2 = 289

2x^2 = 132

x^2 = 66

x = 8.12

HOPE THIS HELPS!!!