Respuesta :

Answer:

[tex]21 > 3rdSide > 5[/tex]

Step-by-step explanation:

the sum of 13 + 8 > 3rd slide > the difference (13 - 8)

[tex](13+8) > 3rdSide > (13-8)[/tex]

        [tex]21 > 3rdSide > 5[/tex]

Hope this helps.