Question

The total surface area of a cube is 7 cm square find the length of its edge

Answer 1

$total \: surface \: area \: = 7 \: cm {}^{2} \\ \\ total \: surface \: area \: = 6(side) {}^{2} \\ 7 = 6(side) {}^{2} \\ (side) {}^{2} = \frac{7}{6} \\ side = \sqrt{ \frac{7}{6} } \\ side = \sqrt{ \frac{7}{6} } \times \sqrt{ \frac{6}{6} } \\ side = \frac{ \sqrt{42} }{6} cm$

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Answer 2

Answer is in picture....❤️