MCQ
The volume of a cube is $64\ cm^3$. Its surface area is:
- A$ 16 \mathrm{~cm}^2 $
- B$ 64 \mathrm{~cm}^2 $
- ✓$ 96 \mathrm{~cm}^2 $
- D$ 128 \mathrm{~cm}^2 $
✓
Answer
Correct option: C.
$ 96 \mathrm{~cm}^2 $
Let the side of the cube be a. Then,
Volume of cube $= a^3- 64 [$given$]$
$\Rightarrow a = 4$
Now, surface area of the cube $= a^2= 6 \times 4^2= 96\ cm^2$.
Volume of cube $= a^3- 64 [$given$]$
$\Rightarrow a = 4$
Now, surface area of the cube $= a^2= 6 \times 4^2= 96\ cm^2$.
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