How many

How many m2 of copper sheet is needed to replace the roof of a conical tower with a diameter of 13 meters and a height of 24 meters if we count 8% of the material for bending and waste?

Correct answer:

S =  548.3641 m2

Step-by-step explanation:

D=13 m h=24 m q=100%+8%=1+1008=1.08  r=D/2=13/2=213=6.5 m s=h2+r2=242+6.5224.8646 m  S1=π r s=3.1416 6.5 24.8646507.7446 m2  S=q S1=1.08 507.7446=548.3641 m2

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