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22=2*22/7*r
r=3,5
v= 1/3*phi*r*r*t
v= 1/3*22/7*3,5*3,5*10
v=1/3*11*3.5*10
v= 385/3
=128,3
22 = 2 x 22/7 x r
r = 22 x 7 / 22 x 2 = 3,5
V = 1/3 phi r2t
V = 1/3 x 22/7 x 3,5 x 3,5 x 10 = 128,34 cm3