Metal box

How much metal we need for the production of box with dimensions 5 dm, 30 cm and a height of 1 m?
Add 12% of the waste and folds.

Correct answer:

x =  2.128 m2

Step-by-step explanation:

a=5 dm m=5:10  m=0.5 m b=30 cm m=30:100  m=0.3 m c=1 m q=100%+12%=1+10012=1.12  S=2 (a b+b c+c a)=2 (0.5 0.3+0.3 1+1 0.5)=1019=1.9 m2  x=q S=1.12 1.9=2.128 m2



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