Cube-shaped 4075

Will you need more paper to wrap a 2.3dm cube box or a 12 cm, 3 dm, and 8 cm cube-shaped box?

Correct answer:

S1 =  31.74 dm2
S2 =  13.92 dm2
x =  1

Step-by-step explanation:

h=2.3 S1=6 h2=6 2.32=31.74 dm2
a=1.2 b=3 c=0.8 S2=2 (a b+b c+c a)=2 (1.2 3+3 0.8+0.8 1.2)=13.92 dm2

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