Question

7. A 4 cm cube is cut into 1 cm cubes. Calculate the total surface area of all the
cubes.

Answer 1

Answer:

Vol. of 1cm cube =(1)

3

cm

3

=1cm

3

Total no. of 1cm cubes =

Vol. of 1 cm cube

Vol.of 4 cm cube

=

1

64

=64

Surface area of 1 cube =6(side)

2

cm

2

Surface area of 1 cube =6(1)

2

cm

2

Surface area of 1 cube =6cm

2

Total surface area of all small cubes =64×6cm

2

=384cm

2