Answer:
Surface Area (S.A.) = 2(8x9 + 8x4 + 9x4)
Surface Area = 2(72 + 32 + 36)
Surface Area = 280
Hope this helps!
Answer:
Step-by-step explanation:
The formula for surface area for this kind of figure is
SA = 2*l*w + 2*l*h + 2*w*h
SA = 2*8*9 + 2*8*4 + 2*9*4
SA = 144 + 64 + 72 in^2
SA = 280 sqr inches
