Question

A 4cm cube is cut into 1 cm the total surface area of all the small cube is

Answer 1

Answer:volume of 4 cm cube = a³ = 4³ = 64

volume of 1 cm cube = a³ = 1³ = 1

therefore,

we can cut 64     1 cm cube from the 4 cm cube.

total surface area of 4 cm cube =  6a²

                                                     = 6×16

                                                     =96

total surface are of 64   1cm cube = 64 ×6a²

                                                         = 64 ×6

                                                         = 384

surface area increases from 96 to 384 when we cut a 4 cm cube into 1 cm cube.

surface area increases 4 times = 400%

Answer 2

Step-by-step explanation:

refer to the attachment