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P=4πR²
a) 2R=12
R=6
V=4/3π*6³
V=4*216/3π
V=288π [j³]
P=4π*6²
P=4*36π
P=144π [j²]
b) 2R=4 √3
R=2√3
V=4/3π*(2√3)³=4/3π*24√3=32π√3 [j³]
P=4π*(2√3)²=4π*12=48π [j²]
d=12
R=12:2=6
P=4(pi)R(kwadrat)
P=4*(pi)*6(kwadrat)
P=4*36(pi)
P=144(pi) [j2]
V=4/3(pi)R(szescian)
V=4/3*(pi)*6(szescian)
V=4/3(pi)*216
V=288(pi) [j3]