Answer: 232 in.^2
Explanation:
Simply imagine the net as an unfolded box. You are calculating the surface area of that box.
First, calculate the value of the large rectangle up top. 10 * 8 = 80.
Because there are 2 equally large rectangles, 80 * 2 = 160.
Second, calculate the value of the small rectangle between the two large ones. It shares a side with one of the large rectangles, so to get the area of the rectangle, simply calculate 2 * 10 = 20. There is another rectangle of equal size, 20 * 2 = 40.
Currently, we have a total of 160 + 40 = 200 in.^2 of surface area.
Finally, to get the value of the small rectangles on the sides, multiply 8 * 2 which equals 16. There is another side the same size as this one, so 16 * 2 = 32.
To calculate final surface area, simply add 32 to 200 which equals a final total of 232 in.^2.