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प्रश्न
The volume of a cube is 64 cm3. Its surface area is ______.
विकल्प
16 cm2
64 cm2
96 cm2
128 cm2
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उत्तर
The volume of a cube is 64 cm3. Its surface area is 96 cm2.
Explanation:
Let the side of the cube be a. Then,
Volume of cube = a3 = 64 ...[Given]
⇒ a = 4
Now, surface area of the cube = a2 = 6 × 42 = 96 cm2
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