This question is about triangles. PLEASE HELP ME

Answer:
[tex]\boxed{12.5}[/tex]
Step-by-step explanation:
Using distance of two points formula.
[tex]d = \sqrt{(x_2-x_1)^2 +(y_2 - y_1)^2 }[/tex]
A(-8, 2)
C(3, -4)
[tex]d = \sqrt{(3-(-8))^2 +(-4- 2)^2 }[/tex]
[tex]d = \sqrt{11^2 +(-6)^2}[/tex]
[tex]d = \sqrt{121 +36}[/tex]
[tex]d = \sqrt{157}[/tex]
[tex]d= 12.5299640861...[/tex]