Question

A solid cube of side 12cm is cut into 8 cube of equal volume what will be the side of new cube also find the ratio between their surface area

Answer 1

Answer:

Step-by-step explanation:

VOLUME OF BIGGER CUBE = 12³ = 1728 cm³

LET THE SIDE OF NEW CUBE BE X.

NO. OF CUBES MADE FROM BIGGER CUBE =  1728/ X³

                                                                 8        =  1728/ X³

                                                                   X³     =   1728/8

                                                                   X³      =    216

                                                                   X        =   6 cm

SURFACE AREA OF BIGGER CUBE    =   6 × 12²

SURFACE AREA OF SMALLER CUBE  =   6× 6²

RATIO                                                    =   6×12×12/6×6×6

                                                               =   4/1

                                                               =  4 : 1

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Answer 2

hope it's help u........