Answer:
x approximately equals 26.4
Step-by-step explanation:
[tex]C^{2}[/tex] - [tex]B^{2}[/tex] = [tex]A^{2}[/tex]
[tex]29^{2}[/tex] - [tex]12^{2}[/tex] = 697
[tex]\sqrt{697}[/tex] ≈ 26.4