The surface area of a cube is 54cm2. what is the area of one face of the cube? What is the length of one edge of the cube?

asked Sep 6, 2015 68.5k views

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$Area\ of\ cube:\\\\A=6a^2\\\\54=6a^2\ \ \ \ \ \ \ |:6\\\\a^2=9\ -\ area\ of\ the\ one\ face\ of\ the\ cube\\\\a=3\ -\ length\ of\ one\ edge$

Sushruth answered Sep 10, 2015

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