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aria e 4piRpatrat=4pi144=576pi
volumul e 4piRcubi pe 3=4pi1728pe 3=2303pi
aria e 4piRpatrat=4pi144=576pi
volumul e 4piRcubi pe 3=4pi1728pe 3=2303pi
A=4πR^2=4*π*12^2=144*4π=576π(cm)^2
V=4πR^3/3=4*π*12^3/3=1728*4π/3=6912π/3=234π(cm)3
V=4πR^3/3=4*π*12^3/3=1728*4π/3=6912π/3=234π(cm)3