Question

lateral surface area of cube is 100m2.What is the length of each side

Answer 1

formula is 4a2

400=4a2
200=a2
a=100

Answer 2

Your answer ^_^

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$Lateral\: surface\: area\: of\: cube = 4{a}^{2} \\ \\ 4{a}^{2} = 100 \\ \\ {a}^{2} = \frac{100}{4} \\ \\ {a}^{2} = 25 \\ \\ a = \sqrt{25} \\ \\ a = 5$

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