Question

If each side of a cube is doubled, how many times will its surface area increase?​

Answer 1

Answer:

4 times it will doubled

Answer 2

Answer:

$orginal \: edge \: of \:the \: cube = a \\ edge \: is \: doubled \: so \: new \: edge = 2a \\ surface \: area \: of \: the \: orginal \: cube = 6 \times ( {edge}^{2}) \\ = 2a \\ surface \: of \: the \: new \: cube = 6 \times ( {edge}^{2}) \\ 6 \times (2 {a)}^{2} \\ 6 \times 4 {a}^{2} \\ 4 \times 6 {a}^{2} \\ 4 \times orginal \: surface \\therefore \: new \: surface \: will \: be \: 4 \: times \: orginal \: surface \: area$

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