Gutter pipe

How many m² of sheet metal is required to produce a 12 m long and 18 cm wide gutter, if 7% bend is required?

Correct result:

A =  3.6304 m2

Solution:

D=18 cm m=18/100  m=0.18 m r=D/2=0.18/2=9100=0.09 m l=12 m  S1=π D l=3.1416 0.18 126.7858 m2  q=7%=1+7100=1.07  A=S1/2 q=6.7858/2 1.07=3.6304 m2



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