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Shawn Lu · Answer 1 · 2018-09-30T14:16:56+0000

check the picture below.

notice, the cube is just 6 squares, each one of 7x7.

so, just get the area of each of the squares, sum them up, and that's the surface area of the cube.

What is the surface area in square inches of a cube with a side 7 inches long?-example-1

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