sa=2lw+2lh+2wh
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The surface area of a box, which is a cuboid, depends on its length, width and height. A cube is a special type of cuboid in which the length , width and height are all the same.
Add all the area of six faces of the box in gerneral the surface area of a cube shape box is 6a2 and of cuboid is 2(lb x bh x hl)
Alex wants to know how much gift wrap to use to wrap a box. Is that surface,area, volume
The formula to find the surface area of a parallelogram is Base*Height.
if you want the outside area just calculate the area of one face of the cube H x L and multiply by six. double this amount if you want the internal surfaces added to this such as if you had a cardboard box.