Question

parikshit make a cuboid of plasticine of sides 5cm, 2cm, 5cm. how many such cuboid will he needs to form a cube
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Answer 1

Answer:

if parikshit make a cuboid of plasticine of sides 5cm, 2cm, 5cm

then he would need for of them to make a cube

Step-by-step explanation:

here

Answer 2

Answer:

20 cuboids

Step-by-step explanation:

We know that the volume of a cube=a^3

and the volume of a cuboid= l×b×h

Here,

volume of cuboid= 5×2×5

we need to make 5×2×5 of the form a×a×a.

so we will find the lcm of 5,2,5.

LCM(5,2,5)=10

So we will make the volume of cuboid ie, 5×2×5 of the form 10×10×10.

NO. OF CUBOIDS= volume of cube/ volume of cuboid

=10×10×10 = 20

5×2×5

So the no. of cuboids needed=20