Reducing 13291

The surface of the cube is 96 cm². What will be the cube's surface that we get by reducing each edge by 1 cm?

Correct answer:

S2 =  54 cm2

Step-by-step explanation:

S1=96 cm2 S = 6a2  a1=S1/6=96/6=4 cm a2=a11=41=3 cm  S2=6 a22=6 32=54 cm2

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