MCQ
The volume of a cube is 512cm3. Its total surface area is:
- A256cm2
- B384cm2
- C512cm2
- D64cm2
✓
Answer
- 384cm2
Solution:
Volume of the cube = a3
⇒ 512 = a3
⇒ a = 8cm
Now,
Total surface area of a cube = 6a2
= 6 × (8)2
= 6 × 64
= 384cm2
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