Respuesta :

Answer:

[tex]4\sqrt{3}[/tex]

Step-by-step explanation:

64  - 16 = 48

49 = 16 x 3

cad311
use pythagorean theorem
ur finding side length a
a = c^2 - b^2
a = 8^2 - 4^2
a = 64 - 16
a = 48
48 squared is 6.93
rounded is 7