Question

If the perimeter of one of the faces of a cube is $40\text{cm}$, then find its volume.

• A. $1600{\text{cm}}^3$
• B. $6000{\text{cm}}^3$
• C. $600{\text{cm}}^3$
• D. $1000{\text{cm}}^3$

Answer 1

The correct option is D $1000{\text{cm}}^3$

Let the side length of the cube be ${}^{\prime }{a}^{\prime }\text{cm}$.
$4a=40\text{cm}$
$a=10\text{cm}$
Volume $=a^3={10}^3{\text{cm}}^3=1000{\text{cm}}^3$