Each face of a cube has perimeter equal to 32 cm. Find its surface area
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Solution
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The faces of a cube are squares.
Let the side of the square or the cube =a cm
Perimeter of the square =4a=32 cm →a=8 cm Total surface area of a cube of edge a=6a2
So, the total surface area of the cube of edge a=8 cm is 6(8)2=384cm2
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