Block-shaped 37841

Calculate how much sheet metal is needed to make a closed block-shaped container with dimensions of 2 m, 7 m, and 9 m if we must add 12% to the welds.

Correct answer:

S =  212.8 m2

Step-by-step explanation:

a=2 m b=7 m c=9 m  S1=2 (a b+b c+c a)=2 (2 7+7 9+9 2)=190 m2  p=100%+12%=1+10012=1.12  S=S1 p=190 1.12=212.8 m2



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