Question

A solid cube of side 12 cm is cut into 8 identical cubes each having
the same volume What will be theside of the new cubes. Also find
out the surface area of both the cubes?​

Answer 1

Answer:

Volume of old cube =a³

⇒(12)³=1728 cm³

No.of cubes =8

Volume of old cube = 8* volume of 1 new cube

1728=8*a³

1728/8=a³

12/2=a

6 cm=a

Surface area of old cube/ surface area of new cube=6*(12)²/6*(6)²

=144/36=4/1=4:1