Carol with cut bar 12 cm x 12 cm x 135 cm to the cubes. Find the sum of all the surfaces of the resulting cubes.

Correct answer:

S =  38880 cm2

Step-by-step explanation:

a=12 cm b=135 cm  n1=b/a=135/12=445=11.25  12=223 135=335 GCD(12,12,135)=3  x=GCD(a,a,b)=GCD(12,12,135)=3 cm  V=a a b=12 12 135=19440 cm3 V1=x3=33=27 cm3  n=V/V1=19440/27=720  S1=6 x2=6 32=54 cm2  S=n S1=720 54=38880 cm2

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