a) 6pi
b) 9pi
c) 12pi
Szczegółowe wyjaśnienie:
L= 2(pi)r = 2(pi)3 = 6pi
L= 2(pi)r = 2(pi)4,5 = 9pi
r= 6 L= 2(pi)r = 2(pi)6 = 12p
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a) 6pi
b) 9pi
c) 12pi
Szczegółowe wyjaśnienie:
L= 2(pi)r = 2(pi)3 = 6pi
L= 2(pi)r = 2(pi)4,5 = 9pi
r= 6 L= 2(pi)r = 2(pi)6 = 12p