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The bulk of the question is irrelevant ! If all you need is the surface area of the 3-inch cube, simply multiply 3 x 3 x 6 to give 54 square inches !
SA = area of all sides added up. 6 Faces on a cube. 82 = 64. 64 x 6 = 384 The surface area of an 8" cube is 384"
Well, isn't that a happy little question! To find the surface area of a cube, you simply need to calculate the area of all six sides and add them up. Since all sides of a cube are the same, you can find the area of one side by squaring the length of one side. So, for a 3-inch cube, the surface area would be 6 sides x (3 inches x 3 inches), which equals 54 square inches. Happy painting!
54 sq in
surface area for a cube isSA= 6a2a2 is the area of one sidearea is L X WSo the answer to your question is: 864 square inches.SA= 6 X 122inchesSA= 6 X 144square inchesSA= 864 square inches