Question

The volume of a cube is $343c{m}^3$ It's total surface area is

• A. $196c{m}^2$
• B. $49c{m}^2$
• C. $294c{m}^2$
• D. $147c{m}^2$

Answer 1

The correct option is C $294c{m}^2$

We know that the volume of the cube $=a^3$

So,

$343=a^3$
$a=7cm$

Also, Total surface area of the cube $=6a^2$

So,

$=6\times 7^2$

$=6\times 49$

$=294c{m}^2$