Answer:
2304 in^2
Step-by-step explanation:
Top shape volume = L • W • H where L = length W = Width and H = Height
12 • 6 • 12 = 864 in^2
Bottom shape volume = L • W • H where L = Length W = Width and H = Height
18 • 8 • 10 = 1440 in^2
Add 864 and 1440
864 + 1440 = 2304 in^2
*Mark me as brainliest*