Question

1
of
A solid cube al sidi 30cm is cut into
eight cubes of equal volume. What will
be side the new cube?​

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