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9. The surface area of a cube is 294cm2.Find the volume of cube.

Answer»
tsa = 6 {a}^{2}  \\  \frac{294}{6}  =  {a}^{2}  \\  \sqrt{49}  = a \\ vol =  {a}^{3} \\ vol =  {(7)}^{3}  \\ vol = 343 {cm}^{3}


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