Volume and Surface area of Solids — Maths STD 10 — Question
Maharashtra BoardEnglish MediumSTD 10MathsVolume and Surface area of Solids2 Marks
Question
The volume of a cube is $729\ cm^3$. Find its surface area.
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Answer
Let the edge of the cube be a.
As,
Volume of the cube $= 729\ cm^3$
$\Rightarrow\text{a}^3=729$
$\Rightarrow\text{a}=\sqrt[3]{729}$
$\Rightarrow486\text{cm} ^2$
Now,
Surface area of the cube $= 6a^2$
$= 6 \times 9 \times 9$
$= 486\ cm^2$
So, the surface area of the cube is $486\ cm2$.
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