Answers

2016-03-05T14:57:29+05:30
12×12×12=volume 1
8×a³= volume 1 = 12×12×12
a³= 1728÷8=216
a=³√216=6cm = side of new cube
T.S.Aof original cube = 6(12)²................(1)
T.S.A of new cube = 6(6)²...........…..........(2)
(1) : (2)= (12)² : (6)²= 4 : 1 = ratio of T.S.As
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