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V1=4πR³/3
objętośc stożka:
V2=πR²H/3
H=2R
V2=πR²2R/3=2πR³/3
V1/V2=(4πR³/3)/(2πR³/3)=(4πR³/3)*(3/2πR³)=4πR³/2πR³=2
V1=2*V2
Objetosc kuli jest 2 razy większa