Question

prikshit makes a cuboids of plasticine of side 5 cm,2 cm , 5 cm how many such cuboids will he need to form a cube?
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Answer 1

Step-by-step explanation:

hello and ur answer is

Volume of Cuboid

Sides are 5, 2, 5 cm

Length = 5 cm

Breadth = 2 cm

Height = 5 cm

Volume = Length x Breadth x Height

= 5 x 2 x 5

Now,

Volume of cuboid x Number of cuboids = Volume of cube

5 x 2 x 5 x Number of cuboids = a3

a3 = 5 x 2 x 5 x Number of cuboids =

Volume of Cube

Let side of cube a

Volume = Side 3

= a3

Since on the left we have cube,

we should have cube on the right as well

To form cube on the right

We multiply by 5 x 2 x 2

Thus, in

a = 5 x 2 x 5 x Number of cuboids

Putting Number of cuboids = 5 x 2 x 2

a = 5 x 2 x 5 x 5 x 2 x 2

a3 = 5 x 5 x 5 x 2 x 2 x 2 =

Therefore,

Number of cuboids = 5 x 2 x 2 = 20.

this is the answer.