find the side of a cube of its total area is 486cm
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let the length of a side is = x.......now the total area of a cube is 6*(x^2)....
so, 6*(x^2) = 486 => (x^2) = 81 => x = (81)^(0.5) => x = 9 cm
so, 6*(x^2) = 486 => (x^2) = 81 => x = (81)^(0.5) => x = 9 cm
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Total area of the cube = 486cm²
6a² = 486
⇒ a² = 486/6
⇒ a² = 81
⇒ a = √81
i.e, a = 9 cm
6a² = 486
⇒ a² = 486/6
⇒ a² = 81
⇒ a = √81
i.e, a = 9 cm
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