Mensurationmedium · Past Paper
If the length of the diagonal of a cube is sqrt(3) * 10 cm, what is its total surface area?
A300 cm²
B600 cm²
C100 cm²
D400 cm²
✓ Correct Answer: B — 600 cm²
Diagonal of cube = sqrt(3)l. So l = 10 cm. TSA = 6l² = 6 * 100 = 600 cm².
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