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प्रश्न
If the length of each edge of a cube is tripled, what will be the change in its volume?
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उत्तर
Let the edge of a cube be a.
If edge of the cube became tripled i.e. a = 3 × a = 3a
... Volume of the cube = a3
... Volume of the cube with edge tripled = (3a)3 = 27a3
Hence, volume is 27 times of the original volume.
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