Answer:
384 in^2
Step-by-step explanation:
Surface Area (or SA for short) formula:
SA=2lw+2lh+2hw
(l=length, w= width, h= height)
9*12=108*2=216
9*4=36*2=72
12*4=48*2=96
216+72+96=384
Answer:384 in^2
Hope this helps!
