Question

8 metallic cubical blocks of equal size are melted and join together to form a bigger cubical block.If the smaller block is 10 cm thick,find the thickness of the bigger block.

Answer 1

Answer:

volume of the 8 blocks= volume of new block

☆ 8×10×10×10= volume of new block

☆ 2^3×10^3 = side^3

☆ 20^3= side^3

therefore thickness of bigger block= 20cm

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Answer 2

the thickness of the bigger block. = 20cm.

Step-by-step explanation:

Here

the smaller block (l) = 10 cm

metallic cubical blocks of equal size (n) =8picese

the thickness of the bigger block. = ?

Now,

the smaller block (v) = l^3

= 10^3

= 10x10x10

= 1000cm^3

metallic cubical blocks of equal size (v) =8x1000

=8000cm^3

the thickness of the bigger block. = √8000

=20cm.

so, the thickness of the bigger block. = 20cm.