Question

The volume of a cube is $343$ cubic cm. The surface area of the cube is

• A. $284{\text{cm}}^2$
• B. $288{\text{cm}}^2$
• C. $290{\text{cm}}^2$
• D. $294{\text{cm}}^2$

Answer 1

The correct option is D $294{\text{cm}}^2$

Side of the cube $={\left(343\right)}^{1/3}=7$
Surface area $=6\times {\left(side\right)}^2=6\times 72=294c{m}^2$