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Q.

What is the length of each side of a cube, if its volume is 512  cm 3  ?


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a

6 cm

b

7 cm

c

8 cm

d

9 cm

e

  

answer is C.

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Detailed Solution

The given volume of the cube = 512c m 3  .
For a cube with side units of x,
Volume of the cube = x 3   unit.
Let side of the cube = x cm, so by the given condition,
x 3 = 512 x 3 = 8 3 x=8  
The cube's consequent side is 8 cm.
Therefore, option 3 is correct.
 
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