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Q.

What is the length of the edge of a cube of volume 1000 cm3?


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a

20cm

b

10cm

c

21cm

d

11cm 

answer is B.

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Detailed Solution


 seo
Let the length of each edge of the cube be a cm, then volume = a3
⇒1000 cm3 = a3
We can write 1000 as 10×10×10
So,
⇒ a3 =1000 = 10×10×10
a = 10 cm
Hence the length of the edge or side of the cube is 10 cm
So, the correct answer is “10 cm”.
 
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