If each edge of a cube is of bolume v is doubled then the volume of the new cube is give the solution
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(i) Let initially the edge of the cube be l .
Initial surface area = 6l 2
If each edge of the cube is doubled, then it becomes 2l.
New surface area = 6(2l)2 = 24l 2 = 4 � 6l 2
Clearly, the surface area will be increased by 4 times.
Initial surface area = 6l 2
If each edge of the cube is doubled, then it becomes 2l.
New surface area = 6(2l)2 = 24l 2 = 4 � 6l 2
Clearly, the surface area will be increased by 4 times.
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