Answer:
You need to use sohcahtoa
C.
cos(45)=x/[tex]8\sqrt{2}[/tex]
x=8
A.
x= 8 its an isosceles so c=a
B.
sin(30)=8/x
x= 16
D.
cos(30)=x/16
x=8[tex]\sqrt{3}[/tex]