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  • Parikshit makes a cuboid of plasticine of sides 5cm,2cm,5cm. How many such cuboids will he need to form a cube?

Q.4  Parikshit makes a cuboid of plasticine of sides 5\: cm,2\; cm,5\; cm. How many such cuboids will he need to form a cube?

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Volume of cuboid is  5\times2\times5 = 2\times5\times5 cm^3

To make it a cube need to make this a perfect cube number.

So we need  2\times2\times5 cuboids 

or      20 cuboids.  

Posted by

Devendra Khairwa

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