Question

A 4 cm cube is cut into 1 cm cubes. Calculate the total surface area of small cubes .also calculate
ratio of surface area of small cubes to that of the large cube.​

Answer 1

Answer:

6× 64 = 384 sq cm

and ratio is 4:1

explanation

total surface area of cube is

$6 \times {a}^{2}$

also volume remains constant mn

so volumes we get "64" of 1cm cubes are made out of 4cm cube

after that we get total surface area of 64 cubes is

6×64 = 384 sq cm

also ratio of small cubes to large cube area is

64:16 which gives 4:1 as answer