Area of a box:
base * height = area
1 in * 1 in = 1 in^2
Area of a triangle:
(1/2) * base * height = area
(1/2) * 3 * 3 = 4.5 in^2
4.5 in^2 + 1 in^2 = 5.5 in^2.
So the overall area is 5.5 in^2.
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