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r=1/2a=1/2*1,4m=0,7m
h=a=1,4m
V=Pp*h=pi*r^2*h
V=0,7^2*1,4*pi=0,49*1,4*pi=0,686*pi m^3 objętość
Pc=2*Pp+Pb=2*pi*r^2+2*pi*r*h=2*pi*r*(r+h)
Pc=2*0,7*pi(0,7+1,4)=1,4*pi*2,1=2,94*pi m^2 pole pow. całkowitej