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H=3*(-3)-2*(-4)+6=-9+8+6=5
Pp=100π
r=30%Pp
r=0,3*100π
r≈94
V=Pp*H
V=100π*5=500π
Pc=2Pp+Pb
Pb=2πrH
Pb=2π*94*5=940π
Pc=2*100π+940π=200π+940π=1140π