The perimeter of one face of a cube is 20 cm. Its volume must be · ABC26GN4839
Subject: General Aptitude · Chapter: Volume and Surface Area
The perimeter of one face of a cube is 20 cm. Its volume must be
(a)$125 \mathrm{cm}^{3}$
(b)$400 \mathrm{cm}^{3}$
(c)$1000 \mathrm{cm}^{3}$
(d)$8000 \mathrm{cm}^{3}$
Answer
Explanation
Edge of the cube $=\left(\frac{20}{4}\right) \mathrm{cm}=5 \mathrm{cm}$. $$\text { ∴ } \text { Volume }=(5 \times 5 \times 5) \mathrm{cm}^{3}=125 \mathrm{cm}^{3} .$$
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