Question

Find the surface area of a cube whose volume is  216 dm³.

Answer 1

\[\text { Volume of the given cube = 216  }{dm}^3 \]

\[\text { We know that volume of a cube = (side ) }^3 \]

\[ \Rightarrow (\text { side ) }^3 = 216 \]

\[\text { i . e . , side = } \sqrt[3]{216} = 6 dm\]

\[ \therefore \text { Surface area of the cube = 6  }\times \text { (side ) }^2 = 6 \times (6 )^2 = 216 {dm}^2\]