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16√3=a²√3 przez4 /*4
64√3=a²√3 //:√3
64=a² //√
a=8
Pc=pi r²+pi rl
Pc=pi 8²+pi 8*8
Pc=pi 64+pi 64
pc= 128dm²
V=1/3 pi r²*h
V=1/3pi 8²*8
V=1/3pi 512
V=512/3pi