Cubes

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 result:

S =  38880 cm2

Solution:

n1=135/12=454=11.25 12=223 135=335 GCD(12,12,135)=3  a=GCD(12,12,135)=3 V=12 12 135=19440 n=V/a3=19440/33=720 S1=6 a2=6 32=54 S=n S1=720 54=38880 cm2



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