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r=3cm
H=a√3przez2
H=6√3przez2
H=3√3
V=Pp*H
V=πr²*H
V=π3²*3√3
V=9π*3√3
V=27√3πcm²
r²+H²=l²
3²+(3√3)²=l²
6+27=l²
l=√36=6
Pc=Pp+Pb
Pc=9π+π*r*l
Pc=9π+π*3*6
pc=9π+9π
Pc=18πcm²