Question

The volume of this cube is $125$ cubic units. What is its surface area?

• A. $180{unit}^2$
• B. $150{unit}^2$
• C. $130{unit}^2$
• D. $140{unit}^2$

Answer 1

The correct option is B $150{unit}^2$

Volume of the cube = side $\times$ side $\times$ side or $s^3$
$125=s^3$
$s=\sqrt[3]{3125}=5$ units
Therefore, total surface of a cube $=$ $6\times$ side${}^2$
$=6\times 5\times 5$
$150{unit}^2$