Question

find the volume of cube whose surface area is 150 m2

Answer 1

$surface \: area \: of \: cube \\ = 6 {a}^{2} \: where \: a \: is \: side \: of \: cube \: hence \\ 6 {a}^{2} = 150 \\ {a}^{2} = 25 \\ a = 5$
$volume = {a}^{3} = {5}^{3} = 125 \: {cm}^{3}$

Answer 2

Surface area of cube = 6a²=150 m²
=>a²=25 m²
Hence,a=5 m
Volume of cube=a³ = 5³=125 m³.

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