Seat

How much m² of fabric do we need to sew a 50cm-shaped cube-shaped seat if 10% of the material we add to the folds?

Result

X =  1.65 m2

Solution:

a=50 cm=50/100 m=0.5 m q=10%=1+10100=1.1  S=6 a a=6 0.5 0.5=32=1.5 m2  X=q S=1.1 1.5=3320=1.65 m2a=50 \ cm=50 / 100 \ m=0.5 \ m \ \\ q=10 \%=1 + \dfrac{ 10 }{ 100 }=1.1 \ \\ \ \\ S=6 \cdot \ a \cdot \ a=6 \cdot \ 0.5 \cdot \ 0.5=\dfrac{ 3 }{ 2 }=1.5 \ \text{m}^2 \ \\ \ \\ X=q \cdot \ S=1.1 \cdot \ 1.5=\dfrac{ 33 }{ 20 }=1.65 \ \text{m}^2



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