Mensurationhard · Past Paper
If a cube of 12 cm side is cut into 8 smaller cubes of equal volume, what is the surface area of one smaller cube?
A216 cm²
B144 cm²
C288 cm²
D100 cm²
✓ Correct Answer: A — 216 cm²
Volume of large cube = 12³ = 1728. Vol of small cube = 1728/8 = 216. Side of small cube = cbrt(216) = 6 cm. Surface area = 6 * 6² = 216 cm².
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