Question

The surface area of a cube whose edge is 9cm is *
please I did help step by step

Answer 1

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As,we know that Area of cube :-6l^2

so;

$6 \times {9}^{2} \\ 6 \times 81 \\ 481cm {}^{3}$

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Answer 2

Step-by-step explanation:

$given \: edge = 9 \: cm$

$total \: surface \: area \: f \: a \: cube = 6 \times {side}^{2}$

$= 6 \times 9 \times 9$

$= {486 \: cm}^{2}$