Chapter Closure
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In total, we have 42 cube sides that we can see from the front, right, top, back, left, and bottom. Since there are no hidden cubes, the surface area is 42 square units. To find volume, remember that each cube has a side of 1 unit, so every cube has a volume of (1)(1)(1)=1 cube (13) units. The solid has 12 cubes, which means the volume is 12 cube units.