Paper box

Calculate how much we'll pay for a three-sided shaped prism box with a triangular base, and if it measures 12cm and 1.6dm, the hypotenuse measures 200mm. The box is 34cm high. We pay 0,13 € per square meter of paper.

Correct answer:

x =  2.37 Eur

Step-by-step explanation:

a=12 cm dm=12:10  dm=1.2 dm b=1.6 dm c=200 mm dm=200:100  dm=2 dm  h=34 cm dm=34:10  dm=3.4 dm  S1=a b/2=1.2 1.6/2=2524=0.96 dm2 S2=(a+b+c) h=(1.2+1.6+2) 3.4=25408=16.32 dm2  S=2 S1+S2=2 0.96+16.32=25456=18.24 dm2  x=0.13 S=0.13 18.24=2.37 Eur

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