Wallpaper 82866

How much dm2 of wallpaper is needed to stick a box (without a lid) in the shape of a cube with an edge of 12 dm?

Correct answer:

S =  1440 dm2

Step-by-step explanation:

a=12 dm S1=a2=122=144 dm2  S=5 2 S1=5 2 144=1440 dm2



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